look up any word, like fap:
 
1.
Buy 10 get 1 free. Very common on quarter waters, long ices and du rags. Less common but sometimes available on "defective" bicycles.
customer: I'll take 11 of these, but I'm only paying for 10.
clerk: So your making that a Puerto Rican dozen.
by Stauqmuk June 21, 2010