Meanings
moob1
plural moobs
- plural normallyslangA plump or untoned breast on a man.
2001 September 3, miha ³, "Re: I know I shouldn't be doing this but...", in alt.games.video.nintendo.gamecube, Usenet, Yeah, put a shirt on gene, we don't want to see your fatty moobs.
3 more examples
Vince has Moobs (man boobs = moobs)
1998 September 6, 6PANTERA, “Re: SUNDAY NIGHT HEAT: November 29, 1998, I'll be there...”, in t-netz.wrestling.wwf (Usenet), retrieved 12 Sep 2016, message-ID <6svsrp$dnp@chronicle.concentric.net>Often – I refer you in particular to Rod Stewart and Tony Blair – these moobs are strangely taut and unsaggy, and have that bee-stung, 12-year-old girl look.
2007 January 6, The GuardianRanged along the sides of the broad chamber were curtained booths containing day beds, and from time to time an overweight East End cabbie would emerge from one of these, his moobs glistening with sweat, [...]
2009, Will Self, Ralph Steadman, Psycho too, page 242Synonyms: man boob
moob2
present singular third person moobs · participle present moobing · participle past moobed · past moobed
- intransitiveslangboard gamesTo rapidly adjust the evaluation of a position towards zero, indicating a likely draw.
The time taken for an engine to boom / moob can be quite a while because that time taken is completely dependent on the hardware you're running the program on.
2020 November 27, Allure, “Big changes in engine's evaluation after considerable time”, in Stack Exchange, archived from the original on 22 May 20242 more examples
Stockfish was slightly moobing until Leela played Qf5. An innocuous looking move that immediately sent alarm bells ringing and Stockfishes^([sic]) evaluation just kept rising.
2020 September 20, u/FMExperiment, “Stockfish beats Leela to inflict her first defeat in TCEC season 19 and remains the last undefeated engine!”, in Reddit, r/chess, archived from the original on 22 Oct 2022The reverse was also won uneventfully by LEELA although the fish emotes were numerous in the chat as STOCKFISH 'moobed' to a mere 0.40 evaluation after its 25th move!
2021 May 26, Matthew Sadler, “The TCEC20 Computer Chess Superfinal: a Perspective”, in ICGA Journal, volume 43, number 1, →DOI, pages 74–87Antonyms: boom
plural moobs
- slangboard gamesAn instance of moobing.
The evaluation boom and moob continued as Stockfish headed for a queen-rook-knight vs queen-rook-knight position that looked pretty nasty to me!
2022 April 22, Matthew Sadler, “TCEC Season 22 SuperFinal: Komodo Dragon vs Stockfish”, in TCEC, archived from the original on 13 Dec 20222 more examples
The latest Stockfish on my laptop finds mate in 22 in less than a minute. Do you have any examples where a boom (or moob) occurs after 2-3 minutes of evaluation?
2020 November 27, the_fox, “Big changes in engine's evaluation after considerable time”, in Stack Exchange, archived from the original on 22 May 2024One notable exception to the missing lines being interesting: Sometimes on a moob the sudden insight is 'I'm going to hit the 50 move rule before realizing my advantage'.
2021 January 23, Bram Cohen, “You're doing computer chess game commentary wrong”, in Medium, archived from the original on 06 Dec 2022Antonyms: boom
Synonyms & antonyms
nounA plump or untoned breast on a man.
verbTo rapidly adjust the evaluation of a position towards zero, indicating a likely draw.
nounAn instance of moobing.
Origin
moob · verb, noun
Inversion of boom (“to rapidly adjust the evaluation of a position away from zero, indicating a likely win or loss”).
Full word history & related roots →Translations
French moob
- moobmale breast
Polish męski cycek
- męski cycekmale breast
Swedish chipstutte
- chipstuttemale breast
Rhymes & wordplay
Rhymes with moob
All rhymes →Anagrams
Cite this entry
moob. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/moob
“moob.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/moob. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “moob,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/moob.
Source: moob on Wiktionary, CC BY-SA 4.0.