Resting Prison Face is the phenomena of someone making a particularly menacing or unapproachable face when outside, at all times. Also see resting bitch face for a similar effect.
Friend: "What's with your face bro are you angry or something"

Friend 2: "that's just my RPF (resting prison face)"

Friend: "oh, RPF bro, I get it
by BilliamShagspeare January 30, 2021
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