Meanings
- slanguncountableSexual involvement between students residing in the same flat.
Origin
Cite this entry
flatcest. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/flatcest
“flatcest.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/flatcest. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “flatcest,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/flatcest.
Source: flatcest on Wiktionary, CC BY-SA 4.0.