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1.
someone who has had so much plastic surgery on thier face they look like rigor mortis has set in. Stiff face
OMG look at rigor over there
by SamanthaJay September 23, 2008
 
2.
To go beyond hard or hardcore. Something completely awesome or something extremely stiff.
That concert last night was hella rigor!

Have you heard that new song? It's so rigor!

Remember when we were playing basketball and you shot that 3 point shot backwards and made it all net? That was rigor!

Or

I saw that fine girl today and I got rigor.

putting that new stuff in your hair made your spikes so rigor.
by TOoN September 27, 2014