Green’s Dictionary of Slang

1.

2. (UK teen) kissing.

2016

Independent 5 Jan. 🌐 Many other [teenage] words belong to MLE—multi-ethnic or multicultural London English— [...] Among the most pervasive are bruv, mate, bare, fam, gwop, or peas (money), and chirpsin’, linkin’, and lipsin’—flirting, dating, and kissing respectively.