An erection
Mourning wood!
I dont have a porsche. (Best told by whispering in someones ear.)
Annather brick in the wall !
They both love The Wall
Because they were a nuisance (new cents).
Paint yourself green and throw forks at them.
You take off your boots to jump on a trampoline
One is fun to smash with a sledgehammer and the other one is a watermelon