a turd that is produced after eating a steak that is of very low quality(lots of gristle, fat and nerves). This turd is often very hard and painful to pass and may tear your asshole.
Damn Chili's! Their shitty steak gave me a back bottom gristle lump that I will always remember! OUCH!
by not a dirty robert August 25, 2005
Get the back bottom grisle lumpmug. by martin 007 March 08, 2011
Get the grisle grabbermug.