Crunglin' 

When a fat person is running

Betty weighs over 200 kilograms (440 lbs) and she's crunglin' right now.

Crunglin' by thepicklegod June 22, 2021

crunklin 

The crinkle in the back of your shirt by your butt that sticks out funny.

You have a little bit of crunklin going on by your butt here, straighten it out.

crunklin by pfeiffee October 27, 2013