From the Super Mario Wiki

Stankulus is an enemy in Wario: Master of Disguise. It is a bronze statue of a naked muscular man that appears under a staircase in the lobby of the Smithsnorian Museum. Stankulus is completely immobile and attacks Wario by shooting electric balls out of its armpit. It can be destroyed with any attack. Stankalus' name is a pun on Spartacus.

In-game description[edit]

The bronze statue of a long-lost athlete sports the world's finest armpits, which emit a fine mist that smells vaguely of cantelope.