1 definition by Peter Ravella
to go crazy after a member of the opposite sex, and completely change your personality and outlook on life, like Jhon Lennon did for Yoko. Often includes completely ruining a planed event, or sometimes ignoring friends for weeks.
"dude where is Ben, i thought he was coming to the barbeque off."
"Didn't you hear, he went all loko on us, he turned into a vegan"
"Damn"
"Didn't you hear, he went all loko on us, he turned into a vegan"
"Damn"
by Peter Ravella January 26, 2006