Definitions by Petrarca

mongrel rat 

this word can be used in many ways and is quite diverse, but is commonly an insult.
1. someone who is grimey. maybe they haven't showered. or they are a slob.
2. a person who is schemey or annoying
3. typically a friend that pisses you off in some way

"damn mongrel rat"

mongrel rat by Petrarca July 5, 2009

thoreau 

getting out of society, camping, being in the wilderness

guy 1 - "yo man what's up? how you been?"
guy 2 - "not a lot, sick of this town, gonna go thoreau on this town"

thoreau by Petrarca June 15, 2009