A sexual position often leveraged when available space does not allow for a typical "North-South" thrusting motion from behind. The BT receiver moves vigorously in an "East-West" motion while the giver remains steadfastly inserted, thereby enabling intense gratification for both parties. Airline restrooms and smallshower stalls lend themselves well to BT.
Wanna join the mile high club? I do but there's barely enough room for both of us in there, it'll never work. Plenty of space backside turbulence.
The act of retracting a prior statement, reversing the consequences of a previous action, or undoing preceding events in any such similar form. However, this is commonly looked down upon in society because it's a fuckin weak ass move that reeks of being a beta. Be a man/woman/transgender/etc (I will not assume your gender or sexuality), own your shit.
Verb; An attempt to fix something in which the fixing actually makes the situation worse for you. Common on the internet when an arguement "backfires" and makes you look stupid.