When a gay man pulls his cheek's apart and his compainion quickly fills his anus full of mashed potatoes, then they preform anal sex and when finished they eat the mashed potatoes.
Hey Son, Bob invited me over tonight to have some Mashed Gabe Tators so i can't come to your baseball game tonight.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.