This is the bowl one smokes to bring himself back down to what is called "public high" after smoking out of an instrument of mass destruction, such as a waterfall bong. This ties in as well with the warm up bowl, the one that gets you ready for the instrument of mass destruction.
"damn, man, I gotta go meet up with my parents"- Guy 1
"no worries man, we'll just cool you off with a warm-down bowl."- Guy 2
A penis that is shaped like an upside down bowling pin with the base being thin and the head being extremely girthy.
Robyn wanted the credit she felt she deserved..... after all..... she was the one who sucked off the man with the upside down bowling pin penis