Western European American English terminology for F**cking, hanging out,
Person A: What are you up to?
Person B: Just chonking around!
Chonking (adjective/verb) describes a state in which something is both smelly and sweaty. Of course, there are a limited number of applications for this word, most of which are related to the genital area. Originated in Scotland.
"Ma gooch is pure chonking man!" THE MULLENATOR <--famous scottish frequenter of gay nightclubs.