sucking out urine
post #4979033 post #2590325 post #1897828 post #1856855
Urine being forcefully sucked out of the bladder, normally through a urethral catheter (or similar sounding rod) used as a kind of straw, or more rarely by catheterisation of the bladder with one's tongue, which has mostly the same effect, even if the tongue isn't a tube.