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An obnoxious teenager who pretends to be blind-drunk after unwittingly drinking a plain Red Bull, expecting vodka or Jack Daniels to be mixed inside.
"Leah is such a featherweight, it's embarrassing!"
by Mr Ben February 08, 2005
a small person who easily gets drunk or high.
if you weigh 98 pounds, you are a featherweight.
by abbiXcore June 11, 2005
Someone who can get drunk or high off of incredibly small amounts of stuff. Usually a small person.
Dude! Sherry's passed out in the bathroom! Didn't she only have a quarter of a beer? Featherweight!!

Okay, Hannah, you better only have one hit. You're such a featherweight, last time you had two and you were stoned for days.
by afoxinsox May 06, 2010
An individual that consumes a small amount of alcohol and is intoxicated. Similar to a light weight, but even less alcohol has to be consumed for them to screw a stranger or run around without their clothes.
She's is such a feather weight after one shot her clothes were on the floor.
by Haleslut February 23, 2009

2.Someone who is small/light
That guy is such a featherweight, I heard hes only 90 pounds!

Dude, I heard that he stubbed his toe and went to the ER! What a featherweight.
by teh ero February 18, 2011
-meaning really(hella) easy

-so easy you can't use the term lightweight(meaning so-so)

Person#1- Hey man, how was the test?

Person#2- you know, that ish was featherweight yo, i bet i got an A
by KevoNate January 03, 2008