An aged but well maintained car, generally from the 1980s, that has been bought cheaply and lovingly restored to its former glory. Rusty Monkeys are typically bought cheaply (for less than ยฃ500) and restored to take part in charitable events, races, meetings or just for the fun of it.
Typical and popular Rusty Monkeys include the Audi Quattro, the old-style Ford Escort, the Ford Scorpio, the Trans Am and the original police Panda cars like the Ford Anglia.
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While in the act of receiving a blow job, the man sharts in the females face. Spray poo might be involved
Example: "I was totally getting some head and I gave this chick a rusty monkey... Sharted right in her face"
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Drinking down a forty ounce alcoholic beverage to a desired level (typically the bottom of the cone), then topping off your forty with Mad Dog 20/20. The same concept as a brass monkey, but a lot more disgusting.
Jose: That beezy was on my dick last night!
Juan: Well no wonder, she had herself a rusty monkey
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The act of having fellatio performed on you whilst sitting in a chair or laying on a surface in which your ass is hanging off the seat and simultaneously taking a creamy โpeanut butter-esqueโ bowel excretion that can be caught in hand by the performer of fellatio, the feces are then used as grease to finish you off with a hot hand jibber and blow your white goblins all over your navel.
โThat chick Stacey has major daddy issues, I bet she would give one hell of a rusty grease monkey.โ