Face like a bucket of burnt Lego
a face that looks like it was dropped in a pit of lava and then yelled at by a robot.
My dad's face looked like a bucket of burnt Lego after he tried to fix the TV and broke it.
My cat's face looked like a bucket of burnt Lego after it got into a fight with the vacuum.
My neighbor's face looked like a bucket of burnt Lego after he tried to mow the lawn and fell into a ditch.