Where one lines up all that they've hooked up with and make an acronym using their first initials. Then a 3rd party observer will assign them a word, phrase, or gibberish. This word, phrase or gibberish will include all the people that they've hooked up with, with some extra letters. The 3rd party observer then will set a deadline. The person must meet the deadline by hooking up with the random letters and completing their bingo card.
A random person (who's name you never quite learn) is considered a blank space, or a blank tile. (like one you'd see in scrabble)
Q's, X's, and J's get extra points.
P - Patrick
A - Aaron
R - (whichever "R" you can find)
T - Terrence
Y - (whichever "Y" you can find)
"Did you know you only need an "R" and a "Y" to complete your shambles bingo card?!"
"Yeah I know, but I only have a month to complete it by deadline!"