To be on the lookout for a sexual partner. Originates from the animal world where the male and female of a species will sniff each others' genitals before copulation.
by The Strut October 13, 2004

Jim, "Well don't worry, you had six darts to get 101 or more and you got... 11. All you'll be taking is your BFH."
by The Strut October 01, 2004
