Moocholini
Someone who is a notorious moocher, first used in The Simpsons episode "Milhouse Doesn't Live Here Anymore".
"Hey man, let me go buy another round. You guys have any money? My shout next time, I promise"
"Dude, that's what he says everytime. He keeps mooching off of us. He's a Moocholini"
"Dude, that's what he says everytime. He keeps mooching off of us. He's a Moocholini"