Whatsisnuts 

A term used when unable to remember the name of a person (usually male) that you have just meet.

Also usable as an insult to rather... heavy-set females whose name also escapes you.

John: Hey Todd, have you seen whatsisnuts lately?

Todd: No, I think he moved or died or something.

Whatsisnuts by Lee A-Dizzle August 10, 2007

whatshisnuts

What you call some guy when you can't remember his name

I was going to whatshisnuts house to pick him up but forgot where he lived.

whatshisnuts by AngiCrazy September 4, 2008

whatsernuts 

aka whatsername, but much catchier.

Yeah I went to school with...oh, whatsernuts...Amy, that's right.

whatsernuts by Nikki Scott March 22, 2008