Fisherman's lunchbox
A sexual maneuver that involves the male (the fisherman) double penetrating (or DP) the female with both his male member in one orifice, and a frozen piece of squid in the other.
Friend A: Do you know that girl over there?
Friend B: Know her, I pulled a fisherman's lunchbox on her last week.
Friend B: Know her, I pulled a fisherman's lunchbox on her last week.