Goom Goom

The Elf Goomba Goom Goom is a goomba with a green hat that Mario finds in Paper Mario and the Thousand Year Door Mario found Goom Goom in the Pirate's Grotto's storeroom. He was looking for a single, girl, goomba. If the player shows Goom Goom Goombella, then he will fall in love with her and run away, dropping a couple's cake.

References: http://www.mariowiki.com/Goom_Goom