Verb:The socially accepted use of sexual self relief to relax at any hour of the day in the absence of, for example, a cigarette break at work. Usually done in the privacy of a designated public "rubbin' stall".
"I -- I just don't know anymore Ginger, I tell ya, this shit at work's getting to a boiling point. And now it's got me thinkin... like it's -- like it's either me or them. But I don't know... maybe I just need to go for a rub."
When used in the hyphenated suffix form, x-rub (e.g., couch-rub, truck-rub, toothbrush-rub) denotes a location/activity-specific instance of (predominantly) outer-clothing massaging concentrated in erogenous zones.
Babe, I need some Nappa cabbage and fresh basil for this sausage recipe; let's go to Meijer and have a produce-rub.
A fun, romantic, intense passionate, exxxciting feeling/emotion of deep affection for your partner. "Rub" is a synonym for "love". "Rub" is the more mature version of "wub".