Grimace: A Rant

I think Stephanie Meyer needs to find a new word to sprinkle through her Twilight saga other than "grimaced" to describe facial expressions of her characters.

Here. Let's do the work for her:
First, let's define it:

A sharp contortion of the face expressive of pain, contempt, or disgust.

Okay fine. Thesaurus suggests:

Frown, scowl, contort, screw up, twist

Why is this bugging me? Other than "grimace" being the only expression that Bella Swan seems capable of, it is also the name of a freaky, purple McDonald's cartoon character that scares the bajeebus out of me.

Case in point:

Grimace is a large, purple anthropomorphic being of the "wumpus" species with short arms and legs. One alternative theory is that Grimace is a large, walking, talking taste-bud^{[citation needed]}. He is known for his slow-witted demeanor. His most common expression is the word "duh". Originally, Grimace was the "Evil Grimace", with two pairs of arms with which to steal milkshakes. After that first campaign, the character was revised to be one of the "good guys", and his number of arms was reduced by two. Commercials and merchandise generally portrayed him as a well-meaning simpleton, whose clumsy antics provided a comic foil to Ronald McDonald. The character was retained after the streamlining of the characters in the '80s. Voiced by Frank Welker. (Thanks Wiki!)

Dude. Seriously. WTF is that? *shudders*