Mustard Face 

someone who is clearly pissed off, shitty and in a mood and it blatantly shows. They have a face like they have eaten a spoon full of mustard

"check out the mustard face on her, she is not happy about that!"

Mustard Face by half baked Jake April 2, 2010

Mustard Face 

A Latin American individual who doesn't speak Spanish only English with a Keanu Reeves accent.

I met a few authentic Mustard Faces in El Paso, Texas, last night at Valero!

Mustard Face by Young Cat Meat August 16, 2009

mustard face 

The facial expression achieved when you're taking a gigantic size bite out of a hamburger/hotdog and you expect ketchup but itstead it's fucking loaded with mustard.

"You should have seen that kid's mustard face after I falcon punched him in the testicles. Priceless."

"That old woman had a perfect mustard face after I crop dusted that elevator."

mustard face by Red Fingaz May 5, 2009

Crusty Mustard Face

A really ugly person that seems to always have left-over condiments dried on their face.

I saw Kyle on a date with some crusty mustard face.

Crusty Mustard Face by ExtendedMags April 14, 2012