It is the nickname of a girl that is a friend of a guy that he may think is cute but likes to joke around with, usually a small girl hence the name Gatito (Kitten in Spanish). Any reference to a cat the guy has to call it out to her and give her a little elbow nudge and smile.
Movie: "She is one bad kitty" (Guy nudges girl)
"Hey Gatito, is that 12 year old taller than you???" (giggle giggle)
"Hey Gatito, is that 12 year old taller than you???" (giggle giggle)
by ununumuss June 28, 2011