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1.
fight or havin' beef with somebody
You got plex?
They always plexin' on the westside.
by la la July 22, 2003
 
15.
a grudge or problem that results in an argument or dispute short for complex
The 50 cent dis track against Shyne, Fat Joe and others
by SexyOne March 12, 2005
 
16.
to interfear with.to cause physical or mental duress or harm.
"He plexed him"."John is a plex robot"
by kungfublood July 18, 2003