Something substantially worse than a bummer, but not yet quite a shitshow or a fuckfest. A serious bummer.
A: Have you heard Justin Bieber's new song? It's so great!
B: Oh man, I thought he was dead. What an assmer.
B: Oh man, I thought he was dead. What an assmer.
by MartinClunes September 7, 2012
To be completely in awe of a rear end. Can be positive (shapely female booty) to negative (enormous obese caboose).
by adzling21 August 18, 2010