dirtbag

As a noun dirtbag

is (informal) a dirty, grimy, sleazy, or disreputable person.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As nouns the difference between lowlife and dirtbag

is that lowlife is an untrustworthy, despicable, or disreputable person, especially one suspected of being a criminal while dirtbag is (informal) a dirty, grimy, sleazy, or disreputable person.

As nouns the difference between dirtbag and twit

is that dirtbag is (informal) a dirty, grimy, sleazy, or disreputable person while twit is a reproach, gibe or taunt.

As a verb twit is

to reproach, blame; to ridicule or tease.

As a noun dirtbag is

(informal) a dirty, grimy, sleazy, or disreputable person.

As nouns the difference between taxonomy and dirtbag

is that taxonomy is the science or the technique used to make a classification while dirtbag is (informal) a dirty, grimy, sleazy, or disreputable person.

As nouns the difference between dirtbag and biker

is that dirtbag is a dirty, grimy, sleazy, or disreputable person while biker is a person who rides a bicycle.