Meanings
- slangUsed to express acquiescence or concurrence; true; indeed.
I choose this particular terminology because of the frequency with which I heard it used either in describing a person (“she knows what's up”) or as a statement of approval in response to a particular thought or idea that was introduced (“that's what's up”)
2009, Anthony Kwame Harrison, Hip Hop Underground: The Integrity and Ethics of Racial Identification, page 1121 more example
“Dog, I told you the nigga Turtle said he'll be here 'round 6:30. It's only six o'clock, so if the nigga don't show in thirty minutes, we'll just bounce and do the shit ourselves,” Flick said. “All right, that's what's up,” Pokey said, taking a seat on the bleachers, watching the basketball game.
2013, Tyler Gore, G.A.B.O.S.: Game Ain't Based on Sympathy, page 106 - slangUsed other than figuratively or idiomatically: see that's, what's up.
Synonyms: hell yeah, I know that's right, that's wassup, true that, word, yup
Synonyms & antonyms
phraseUsed other than figuratively or idiomatically: see that's, what's up.
Translations
French c'est ça
- c'est çaslang phrase
Russian э́то зачёт
- э́то зачёт (éto začót)slang phrase
Spanish qué bien, ansí es
- qué bienslang phrase
- ansí esslang phrase
Turkish aynen
- aynenslang phrase
Cite this entry
that's what's up. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/that's%20what's%20up
“that's what's up.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/that's%20what's%20up. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “that's what's up,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/that's%20what's%20up.
Source: that's what's up on Wiktionary, CC BY-SA 4.0.