To work oneself in the rear enry with a dildo, whilst simultaneously masturbating - thus creating an image similar to one absailing down the face of a cliff
The village gossip grape-vines were set ablaze by news that Mrs Stratchlyde had entered the vestry, only to find the Vicar absailing in an upright stoop
To lean backwards with your thumb in your butthole when stoking your cock in the other.
If done properly with the correct timing, it looks like you are repelling down a cliff.
The male act of masturbating your pork sword whilst slyly fingering your own bum hole. Its has an uncanny resemblance to the mountaineering activity of abseiling.
fellow 1: Dad?!!?? what are you doing?
fellow 2: Son, Im abseiling.
fellow 1: I can see that. but why in my room??
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.