An illness which can cause a person to be incredibly annoying and vinegar-scented. This often occurs in conjunction with Tourettes Guy Syndrome and can occur as either a long-term illness or a permanent illness. Unfortunately, the only cure currently known is death.
Person A (inflicted): Hey guys, or should I say... sup, dudes.
Person B: Umm... kay?
Person C: *sniff* Hmm...
Person A: Which entrance is better? The first or the second?
Person B: What the hell?
Person C: What smells like vinegar?
Person A: AAAARGH FUCK FUCK WHICH FUCKING ENTRANCE IS ASS DICKING BETTER?
Person B: *murder* There, that's better.
Person C: Ah, he must have contracted Stevenism. Poor fellow.
Person B: Umm... kay?
Person C: *sniff* Hmm...
Person A: Which entrance is better? The first or the second?
Person B: What the hell?
Person C: What smells like vinegar?
Person A: AAAARGH FUCK FUCK WHICH FUCKING ENTRANCE IS ASS DICKING BETTER?
Person B: *murder* There, that's better.
Person C: Ah, he must have contracted Stevenism. Poor fellow.
by Wrath of the Choclate Starfish August 1, 2009
Get the Stevenismmug. by The Real White Man March 6, 2013
Get the Stevensmug. Emily- "Steven has the biggest cock I've ever seen!"
*Shows Picture*
Mary- "WOW! That's a huge dick!!"
*Shows Picture*
Mary- "WOW! That's a huge dick!!"
by DoYourResearchB4GettingTatted August 4, 2016
Get the Stevenmug. n. a person who constantly hangs around another group of people in order to boost his pride up. Thinks that everyone is on good terms with him, but in reality are just weirded out. Common habits include: posting constantly on Myspace bulletins, instant IM'ing people, and freeloading. Usually possesses a deformed head and a lisp. See also: 10. leech
by "Mary" had a Little Lamb November 10, 2008
Get the Stevenmug. 
A terrible human being that likes to manipulate his girlfriend and make her feel like she does everything wrong. And then just dumps her heart into the trash and move on with life as if nothing happened.
by Darlinduckie July 22, 2019
Get the Stevenmug.