Used when someone is talking a load of crap or has been acting stupid all day.

OR just generally used wen ur dissing somebody saying that they are boring,uncool e.t.c
Ur talking shmap!
OR
Argh! John is being soo annoying
Don't worry he's so shmap anyway.
by ...this 1s 4 u! November 9, 2004
Get the Shmap mug.
A friend with whom you trot the globe with.
by mitpron July 16, 2009
Get the Shmaps mug.