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1.
having large amount of spider web-like cum from all angles in your mouth
I cumwebbed your sister last night untill her mouth was completely overloaded!
by SUCK IT HO! December 03, 2009
 
2.
A layer of semen that is built up in some bodily location after being completely owned by an acquaintance.
I'm really not hearing you derek, you've got cumwebs in your mouth.
by JohnTower December 03, 2009