Swelling in the muscles that occurs when one works out beyond his limits.
"Igor, you have some major swellage in your back!"
by blueyedaryan March 04, 2010
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The enlargement of a dog's arse that indicates it will soon be taking a crap.
Fido's got swellage, get a crap bag ready to pick up the shit.
by ShanghaiNoodler May 20, 2020
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