fat boner

fat bon·er |fat ˈbōnər|
noun

When a person starts thinking about or gets ready to eat food and their stomach expands. The act is similar to how a man's penis will enlarge when thinking about or getting ready to perform the act of sex.

"I love lasagna so much, I'm getting a fat boner just thinking about it."

by mootish21 January 07, 2010