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A condom. An umbrella for your penis preventing the cum outside.
Amy: Do you have the protection?

Ben: A cumbrella? Yeah I've already put it on.
by shaez September 19, 2014
Someone who lets everyone else cum on them. (not necessarily at one time. that would be bukkake )
Your mom is the cumbrella of Eastern Idaho.

Your dad is the cumbrella of Walla Walla, Washington.

Your sister is the cumbrella of the Martin Van Buren High School varsity football team.
by masochistmonkeyjoe March 16, 2007
These are umbrella's used in the porn industry to protect camera's while filming squirt movies.
"Dude, Cytheria is about to blow. Put up the cumbrella."
by Bryz April 29, 2008
When a man stands up and shoots his load all over a chick's head and face. She stands under his cumbrella.
She is standing under his cumbrella ella ella ella ay ay ay ay a ay.
by DaddyAZ September 12, 2008
Something used as a shield to block a mighty cum load landing on ones face!
"Wtf Bitch, Don't be using my sheets as a Cumbrella"
by RobDJ July 23, 2009
A contraceptive device worn on the penis. A synonym to condom.
"Eh man, u got any comdamns?""Yea, here's my last cumbrella, chief."
by Jzza February 19, 2010
An umbrella used to guard one's self from showers of cum.
Im about ta' hit it so hard, she gonna need a cumbrella!
by RodgerCodger January 03, 2011