gnash /nash/

1. To strike (the teeth) together in rage or pain
2. To bite with a snap or clash of the teeth

A snap of the teeth

gnashˈer noun

1. Someone who, or that which, gnashes
2. (usu in pl) a tooth (facetious)

• gawkihood
• gawkihoods
• gawkiness
• gawkinesses
• gawking
• gawks
• gawky
• gawp
• gawped
• gawper
• gawpers
• gawping
• gawps
• gawpus
• gawpuses
• gawsier
• gawsiest
• gawsy
• gay
• gayal
• gayals
• gay-bashing
• gaydar
• gaydars
• gay deceiver