A hole cut in the bottom of the fish n chip bag in which the penis is inserted. The fish n chips is shared with the person or persons who will reach in and unwittingly grab the throbbing, greasy member.

When you just know that ain't a Chiko Roll or Dim Sim in the fish n chips bag!!!
"Hayden gave Karli the Fish n Chip Dirty Dip!" "After finding Hayden's semi-soft cock in the bag Karli chucked her guts up as Hayden told her that it wasn't just vinegar on the chips, it was his cum!"

"Oh man that's so dirty I need to go rinse my mouth out with battery acid!"
by The Moody Poet January 23, 2007
Get the Fish n Chip Dirty Dip mug.