Guac-Top

When your to-go burrito bowl (at Chipotle, Qdoba, or the like) burrito bowl is carelessly topped with guacamole, fusing the entire top layer to the lid and resulting in chaos and destruction upon opening.

The feared guac-top can be averted by requesting a lettuce or cheese topping as a shield layer.

"Gross, they totally guac-topped me."
"Oh man, you're right - half of that bowl just came off with the lid!"