1) Bang 2) Be intimate 3) Blow to the bean 4) Blow to the head 5) British slang for the penis 6) British slang for to have sex 7) Cars bonking into each other 8) Cartoon impact sound 9) Cartoony clout 10) Comic strip sound effect 11) Copulate 12) Couple 13) Do it 14) Fuck 15) Get it on 16) Get laid 1) Bop 2) Eff 3) Fornicate 4) Whap 
to run out of energy; to exhaust stored glycogen.
When muscles completely run out of fuel and you're tired. Can be cured by consuming carbohydrate-rich foods.
Total exhaustion caused by lack of sufficient food during a long race or ride.
Another term like "hitting the wall"; a state of exhaustion when glycogen stores are depleted, blood glucose (sugar) levels are low and the only exercise that can be performed is slow running; typically occurs at around the 20 mile point in the marathon
Bonk is British slang for to have sex.
See "hitting the wall."
a state of severe exhaustion caused mainly by the depletion of glycogen in the muscles because the rider has failed to eat or drink enough. Once it occurs, rest and high-carbohydrate foods are necessary for recovery.
Total exhaustion caused by lack of sufficient food during a long race or ride.
To exhaust the body's supply of carbohydrate, resulting in a sudden and dramatic reduction in performance.
to hit, strike, collide, etc.: to get bonked on the head; cars bonking into each other.
Tapping an object with the snowboard while in the air. 
Hitting a nonsnow object with the snowboard.
To intentionally hit (or bonk) a non-snow object, like a tree stump, with the snowboard. A bonk is a type of trick.
Hitting a non-snow object with the snowboard