The act of attempting to poo with such effort that all facial control is lost. This normally results in extreme contortion of the facial expressions and rapid flapping of the tongue inside the mouth.
Hector had eaten so much food, when he tried to evacuate his bowels he needed to use so much effort that he had a serious case of squeeze tongue. His tongue continued to spasm in his mouth for days after. This was some serious squeeze tongue aftermath.
by Graphcommbanter November 1, 2013