The act of using a "shaft like" object to insert cocaine into a vagina. In popular culture a woman uses a dildo to dip into the coke and slip it straight up the vagina.
Dude! Debbie didn't snort powder but she down for a fun dip!
When your partner is half asleep and still nude, discreetly sprinkle baking soda onto their butthole then dip your finger in vineagar and swiftly poke thier bum with the vineagar soaked finger causing the baking soda to start fizzing in their bung hole (if you manage to penetrate the anus- you might even get the extrafun of a loud pop sound when they jump up in surprise)
Last night after sex,my man was about to pass out and i surprised him with a fundip
When one Bro snorts a line of Fun Dip of another Bro's cock
"Yo, Bro I saw these two dude's Fun Dip Dick Dinging in the bathroom last night."
" Damn bro, We should Fun Dip Dick Ding tonight."
"Yeah bro who's dick gonna get dinged."
"Don't matter Bro"