What is Thirty?
1.
A thirty pack of beers (thirty rack).
A thirty of natty light's only around $15.
See
2.
A slang term for a hardcore porno movie. Derived from the Roman numeral that stands for the rating (XXX).
I was watching a thirty when my dad walked into my room.
3.
A "key word" used by modern males to alert one another of an oncoming attractive female.
Hey Joe,
thirty !
