4v

(n., from Chinese)

Derogatory net-speak term used by Mainland Chinese referring to Taiwan or Taiwanese people.

Etymology: From 湾湾 “wānwān”, diminutive of 台湾 “táiwān/toi4 waan1” (Taiwan), abbreviated as WW, which looks like 4 v's (VVVV)

他马上跟4v去骂一骂 (He's about to curse at some Taiwanese.)