The artificial eyelashes that one uses as umbrellas for the eyes, as to make sure none of the ejaculate or other shrapnel or fluids reaches the eyeballs directly.
She had a long day of work at the brothel, but luckily her eyes stayed protected throughout thanks to her Cumbrella(s).
When someone knows you have something exciting, enticing, or extraordinary to tell them, and you purposely or inadvertently refrain from sharing.
Did you just Bluebrain me you bastard? Barry was about to share the big news, but then he bluebrained the whole bunch.