Top definition
When you fuck everyone you know who possesses a name beginning with the next 5 letters in the alphabet after yours. You must then do 69 + 5 other positions to equal 74
Person A:- Guess what, I reached 74th Base with Rob last night
Person B:- I know, because I was the letter U
by after Eights April 12, 2010
Happy St. Patties Day!