1. Gargantuan, immense (adj.)
2. 10,000 motherfuckers (interjection)
3. A mean-ass swamp monster, specifically a mythical alligator with two heads. (noun)
4. Euphemism for motherfucker (used along the gulf coast by African Americans)
Man, that shit is motengator!
That sumbitch is one fat motengator; he can't evenfit through the door.
Southern slang explicitive used in substitution to generally mean "bitch ass mother-fucker" or other explicitive. Used on subject who will most likely snitch or write you up if real explicitive is used.
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.