aquahead 

The act of receiving head while in a bathtub/pool/hottub/ocean/etc.

You might wanna clean your pool cause your mom gave me aquahead in it last night and i came all over your shallow end.

aquahead by Chris_Wright July 1, 2009

Aquahead 

To recieve oral sex while in a submersible. See Roadhead

"As we reached our final destination at 20,000 leagues, my supermodel colleague thought it was only appropriate to engage in aquahead."

Aquahead by Jake Sheehan June 21, 2003