Top definition
To be so filled with seething angst and rage, your only thought is to utter a gutteral growl, like a Mastodon.
Teacher: "Timmy, you have failed the test..."

Student: "URRRRRRRRRRRRG!!!!"

Teacher: <Blown Away>
<A Prime example of a Mastodon Rage situation>
by Aut0matic M16 April 04, 2010
Mug icon

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug