The act of buying new pants because you have put on weight.
My closet needs an expantion - I put on 20 pounds since I started the new job.
by khakiho February 28, 2014
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When something is so satisfactory that questioning is needed due to its massive power. One can be E X P A N T
Jake: Yo dude this restaurant is pretty good
David: yo that shit be EXPANT
by Plasik February 18, 2018
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