Bonce

Bonce noun [ Etymol. unknown.] A boy's game played with large marbles.
Found on http://www.encyclo.co.uk/webster/B/77

Bonce

• (n.) A boy`s game played with large marbles.
Found on http://thinkexist.com/dictionary/meaning/bonce/

Bonce

Bonce is British slang for the head.
Found on http://www.probertencyclopaedia.com/browse/ZBA.HTM

bonce

large marble used in games
Found on http://phrontistery.info/b.html
No exact match found