A sexual position in which the male (or pitcher) stands behind the female (catcher) and holds her legs up while she holds herself up with her arms in a wheelbarrow-like position, face down. It is in this position that the two engage in thrustings and moanings of sorts.
Male 1 - Dude, my girlfriend and I tried out the retrograde wheelbarrow last night. It was great.
Male 2 - I've gotta try that, soon.
a fucking awful school where teachers and staff don't give a shit about you and don't help you. it's filled with fake ass people, fake ass friends, people that will try fighting you left and right, guys that will use you, girls that will be sooooo mean to you, and teachers that will hit on you. rumors will also start about you and be spread by teachers staff and students. you will at least find one person that will stick with you tho. FUCK WHEELING PARK
Basically in it's most literal sense it means "one who fornicates with whales" but it is a very diverse term and can easily replace a few of the swear words you'd normally use.