A severe stiffening/cramping of the joints/muscles suffered by people who attach hoisting-cables for the huge timbers that are used to build old-fashioned post-and-beam ("mortise-and-tenon") structures.
I overdid it while helping my Amish friends do a barn-raising yesterday, and now I have rigger mortise.
mortus, derived from the word rigamortus. mortus describes a girl with hot body or 'rig'. mortus can also be used as a replacement word for girls or chicks.
"that chick was a hell mortus"
"any mortus at the party?"
"score any mortus?"
"moooooooooorrrrrtuuusssssss!"