A man who can successfully play the piano with his penis.
Did you go to the symphony concert yesterday? They had a penis pianist there!
the act of stacking multiple penises on top of each other inside a vagina
Is it time for another penis stacking Mrs. Whashington?
A phrase often uttered in response to something to which you didn't know how to respond; A phrase so nonsensical it immediately wins any argument and bests other nonsense, causing all forms of argument and nonsense to cease due to extreme confusion on everybody's part.
(Please note that there have been rare occasions in which a person who hears 'penis luigi' responds as if it made complete sense, and even agrees with it. This could be due to levels of confusion so high that a brain lesion occurs, causing the hearer to go into a fit of temporary insanity.
Also note that 'penis luigi' seems to have little to no effect on insane persons in general.)
"You're an idiot, skrulls are fucking awesome!"
"Penis luigi."
or
"My hair is a bird. Your argument is--"
"Penis luigi."
a large vein in the penis area that becomes very noticable when the subject is aroused or in some cases angry
after my boyfriend found out i cheated on him i could see his penis vein
a way to break an awkward silence in a conversation with friends.
Dave: she has nice skin
Bill: ...
Dave: Fat Penis