Whip Lash

Repeatedly hit from behind, causing loss of memory, or causing serve nap time.

I was going to stop by, but you must have had some whip lash

the lashe

Receiving oral sex from the opposite sex.

Man, Josh was getting the lashe at the party last night.

Tip lash

Neck injury sustained (or given) during doggy style sex

I hit it so hard I gave the girl tip lash