Cockney rhyming slang for 'spunk' i.e. to ejaculate.
My ex used to let me pineapple chunk on her face
by Brummie_Stu May 07, 2006
when you havnt had a wank for a couple months and u let it all out! errr chucky!
mate i had a wank for the first time in a year, pineapple chunks mate!
by robcoxrocks September 19, 2008