It come from ancient Spanish, meaning "Dude!". It can mean anything! From "Moo-Chos for the jumper mum!" to "That was one Moo-Chos of a fuck!" Mainly used instead of "Thank You!" though.
"Moo-Chos darlin! You give right good 'ed!"
by DonEm October 22, 2004
Can you define these popular missing words?
u r stupid
by daniel king February 16, 2003