What is Mattress Pumper?
1.
A young guy, shy, loner, usually a teenager, often a geek, who does not have a girlfriend and spends far too much time alone, often at home in his bedroom, when other people his age are out having a good time. The implication being that he is
An underage drinker (under 18) is in a bar and bumps, into a grown man who shouts at him, "Piss off, you little mattress pumper".
See
Random Words:
1.
A name refrencing the generation of young adults born in the 1980s.
1) You had the Baby Boomers, then Generation-X, Now, The EightyBabi..