To spend time with a girl because she's attractive and with the interest of receiving sexual gratification and no other reason.
Said girl generally lacking intelligence or any personality...
d00d1: "Hey, where's Shawn?"
d00d2: "I think he's out with that Megan girl..."
d00d1: "That gullible brunette bitch?"
d00d2: "Yeah. He's totally boobysitting."