KISS SOMEONE'S ARSE (OR N. AMER. ASS)
Meaning of KISS SOMEONE'S ARSE (OR N. AMER. ASS) in English
kiss someone's arse ( or N. Amer. ass)
vulgar slang
behave obsequiously towards someone.
→ kiss
Concise Oxford English vocab.
Сжатый оксфордский словарь английского языка.
2004