slang for a 30 pack of beer. Only used by Southern Californianbeach bums who in an effort to sound edgy, tried to coin their own phrase similar to an existing one for the same thing. (see 30-pack) But lets be honest Southern California has given us worse (see the hills)
"Whoa bra I got high, past out and was raped by a sea lion, want to go halvsies on a thirty-Rack?"
when reciving oral sex you pull out before climax, then procceed to ejaculate on the womans boobs, then turn and shat on their boobs as well; creating the "Dutch Spice Rack"