A funny and/or sophisticated way to say eat. mostly used by the meme man and memers as well as intellectual people and British people when used in a intellectual way it normally isn't spaced out and in full caps.
Gentleman's Umbrella is when a man who is uncircumcised attaches his penis to a man with a circumcised penis by pulling the foreskin over both the penises.
Normally used in the homosexual community. But to do it the person doesn't have to be gay.
Hey Tom did you hear there was a chance of rain, would you like a Gentleman's Umbrella?