A guy goes into a costume shop. He says, "I'm going to a
costume party, I want to go as Adam." The girl brings out
a fig leaf. He says, "Not big enough."

She brings out a bigger one. He says, "Still not big enough."
She brings out a huge fig leaf. He says, "Still not big enough."

She says, "Listen, Ace, why don't you just throw it over your
shoulder and go as a gasoline pump?"