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."
by Jake Sheehan June 21, 2003
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.
by Chris_Wright July 01, 2009