Plint

Plinting is the horrid feeling where you just can't hold a poo in any longer, it is the extreme of 'touching cloth', where you can literally feel it about to come out and if you don't get to a toilet right away then, be prepared to be classified a PLINTER

Also

Plinted

or as an insult, PLINTER or PLINT

I am plinting

You are a plint

I plinted yesterday at work, I was so close to tagging the floor.