make whoopee

interjection

1. (used as a shout of exuberant joy.)

Idioms

2. make whoopee, to engage in uproarious merrymaking.

interjection (wʊˈpiː)

1. an exclamation of joy, excitement, etc

noun (ˈwʊpiː)

2. make whoopee
   1. to engage in noisy merrymaking
   2. to make love

see whoop it up.