Having the affections of a member of the opposite sex taken from you from under your nose by another.
When chatting up a member of the opposite sex in a bar or other establishment, another guy/girl takes advantage of a small opening (going to the bar/toilet) to slide in and take the affections of said target. Derived from Rubens Barrichellos antics in letting Michael schumacher overtake him in the last stretch to win grand prix races!
by Blastertron August 8, 2005