What do women call a motorboat?
 

?

Does it involve grabbing your boob and twirling them?

Surely you mean a helicopter. A motorboat is when you put your face in the boobs and go; "brrrrrrrrrrr".

Oh..well sarah forced amelia into one the night she bit her leg but bb didnt show it face on...or kick her out for it.

Sexual assault! This is just like the time Sam Pepper "accidentally" put his balls in Josie's mouth.

But yeah I'm guessing she grabbed her head and forced it into her own boobs? Which is quite physically aggressive, to be fair.

A waste of time