Meaning
Worked up and angry; annoyed and agitated — an intensified form of 'vex' (angry). To be 'vex-up' is to be visibly upset and cross, stewing over something. It can also work as a verb: to 'vex up' someone is to make them angry. Compare 'bex', another Patois spelling of 'vexed'.
Examples
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Mi did vex-up bad when dem lick mi car.
I was very angry when they hit my car.
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Nuh vex up yuhself ova dat.
Don't get yourself worked up over that.
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Him vex-up an walk out.
He got angry and walked out.
Origin
From 'vexed' (angry) + 'up' (intensifier). See [[bex]], [[screw-face]].
How it’s used
Worked up / angry; also to 'vex up' = to anger someone. Compare 'bex'. See [[bex]], [[screw-face]].