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Men who wear shorts that stop above the knee have a case of the dad knees. Mostly popular pre-2000's with middle-aged men (dads).
Billy had a growth spurt so we're taking him shopping for new shorts to cover his dad knees.

I can't find any decent shorts here because they're all dad-knee style. I don't even own boat shoes to go with them.

The 80's dad-knees style is coming back in a big bad way with hipsters.
by Faux Foe July 06, 2016
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