crewmur 

Any type of humor involving rowing or crew
Only a rower would get it
Often very bad puns

"my drinking team has a rowing problem."
I dont get it.
It's crewmur.

crewmur by effyuu May 31, 2006

crewmu 

An insultive name with no real meaning other than it sounds good.

It is dervived from leaving the space out of Are you on predictive text.

Shut it Crewmu!

crewmu by thugpuggin October 30, 2008

chewmur 

The pain in your temples from chewing gum for too long - a tumor from too much chewing..

"Man, I have a chewmur!"

chewmur by shellybean64 February 28, 2010