The act of warming derrierre up after a brisk fall on ice. Always done in public, the said victim discreetly shows empathy for his/her sore frozen bottom by rubbing or just offering a few silent words of kindness. If rubbing is not an option, the hurt individual might clench the gluts; thus taking some of the pain away.
Dude, did you see the way that chick is walking? She either has to go real bad or is de-arsing herself.