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1.
A surreptitious or malicious person, often female, who performs fellatio on non-single men in an attempt to malign their victims' girlfriend/partner or wholly steal them altogether.
That fucking cum burglar stole my boyfriend at Matt's party last night!
by Canada Chris September 08, 2006
 
2.
N. A person who breaks into to your house and replaces the electronics with semen.
"Honey, come quick! I think we've been cumburgled! The cumburglar strikes again!"
by Jeffler St. Paul November 08, 2007
 
3.
An ugly girl who fucks a guy while he's sleeping because there is no other way she can get a bit of cock. She literally steals cum.
Anne-Marie is a Cumburglar. what a dirty bitch.
by thewellisfun December 24, 2009