carrying out a series of small tasks while on the way out the door, delaying your departure. Fart arseing is often an infectious activity and can quickly spread across a group, severely undermining their ability to actually go anywhere.
Alex is really fart-arsing about now, that's going to make us so late...but actually while he's at it maybe I have time to redo my eyeliner.
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.