A swamp rat is a name for a skinny little asain who is a snitch, or rat. Swamp rats don't shower, and they spend most of their time snitching on pure breds.
"Dude, Alex is such a swamp rat. He just ratted out Sean to the admins!"
A rare species of rodent which is of unusually large size and found in West Philadelphia. They are often ignorantly misjudged to be a opossum. Fear not, these creatures are nothing more than a rare and placid animal.
"that's a damn big swamp rat"
"you must have neverseen a swamp rat before, that's nothing more than a yearling"
"Shit, that's some fucked up shit."
A large city resident who, due to smog pollution and over population, has mutated into rat-like behavior. Characteristics include: erratic driving, minuet patience, extreme cynicism, narcissism, ultra materialism, competitive without competition and shallow friendliness.
When driving on the freeway in the Los Angeles area, you easily spot a swamp rat, he's the guy in the BMW swerving in and out of lanes, tail gating or waiting until the last possible moment to merge so that he can get a whopping ten feet further in stop and go traffic.
A white female who calls her self a snow bunny, but has a gold grill, messed up track line to her braided weave, and wears alot of camo tank tops. You can often find this female sucking someone off for a cigarette or selling oregano on the corner trying to pass it off as weed. If you come in contact with a swamp ratdon't make any sudden move and pretend like your blind and deaf. She will eventually leave after telling you about how her mama won't give her her kids back.