(noun, chiefly Brit., vulg., commonly prefaced with the definite article: ie., the shouting spider; metaphor referring to the many-legged appearance of the 'spider' in question, and its occasional tendency to 'shout'). The anus.
I had a mutton vindaloo on Friday night. On Saturday morning, my shouting spider was crying out in agony.
by Just_Tom September 21, 2009