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2 definitions by AstroManLuca

 
1.
A fart which leaves a little present behind, like Christmas in your pants.
I shouldn't have eaten so many beans last night, I just did a Christmas fart! Gotta go wash up!
by AstroManLuca February 02, 2005
 
2.
The presence or visibility of clam, aka pussy. Similar to boobage. Often used when a chick moons someone and isn't careful enough about holding her cheeks together, thus allowing you to see the clam between her legs.
"A chick mooned me last night!"
"Sweet, was there any clammage?"
by astromanluca July 23, 2009