Top Definition
The crease in an old man's slacks that his ball-sac makes when straining themselves.
Did you see the size of Grandad's sacknuckles when he got up from the couch?!
by SRKjr August 30, 2008
1 more definition
9 Words related to sacknuckles
The crease in an old man's slacks that his ball-sac makes when straining themselves.
See the size of Grandad's sacknuckles when he got up from the couch.
by Letty01 February 05, 2010

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