Hard af

Extremely simple: hard as fuck.
Adjective.
Most often used as a compliment of people who seem tougher or more weathered than others.

"All of us in suits man? We would look hard af"

"Dude, we are hard af in this"

by Seriousfool June 8, 2013

Hard af

Referring to ones penis when erect.

"Dude, I took a Viagra last night and my dick
Was hard af, no joke.,
Reply..."hard as 'blue' steel?!" (because Viagra's are blue pills)

by PhxSid March 17, 2017