Somebody who is generally unpleasant to be around. Usually cranky, negative, extremly opinionated and basically a total bore.
I am not inviting Barbara to my party! She is such an old bag of gas
or
Get off my front porch you old bag of gas!
or
Abby got an F on her test. What an old bag of gas
or
Get off my front porch you old bag of gas!
or
Abby got an F on her test. What an old bag of gas
by Penny Parrot June 16, 2010