banana on the rocks

The act of splitting the breasts of a female with the male penis. Does not necessarily include thrusting, i.e. it is an erect but motionless penis with emphasis on the separation of the boobs, thereby accentuating the features of the female anatomy.

Usually a move to enable the recipient to kiss and nibble on the tip of the dick.

What did they get up to last night?

They got their kit off but was too pissed and he passed out before he got past banana on the rocks.