look up any word, like blumpkin:
 
1.
A part of something that brings down the overall enjoyment level of the whole.
- Making sure that my grammar is correct is gonna be a huge suck factor on this paper.

- I had a good time at the party last night, but the crowd was a huge suck factor.
by Peter W.N. December 02, 2007
 
2.
a way to measure how much something sucks; the higher the suck factor, the suckier it is
The party I went to last night was okay, but the music was a huge suck factor.
by Peter WN October 23, 2006