burrito fist
this happens when eating large burritos (like chipotle or california tortilla) and the burrito has become too small to hold together properly. the only way to hold it together is to grip the remaining burrito into a fist and shove what you can in your mouth resulting in burrito all over your hand and face.
I wanted to shake the senator's hand, but I had burrito fist and didn't want to fuck up his fancy ring.