Gammy vs. Grandmother
Difference Between Gammy and Grandmother
Injured, or not functioning properly (with respect to legs).I have got a gammy leg, and can't walk far.
A mother of someone's parent.
(colloquial) Grandmother.Had our beloved gammy lost it?
A female ancestor or progenitor.
A blowjob; fellatio.
the mother of your father or mother
(British informal) sore or lame;a gammy foot