A male platonic companion that a young, attractive woman keeps around to feel better about herself. The Dick in a Jar is stable, friendly, sensitive and nonthreatening. He is infatuated with her, but she sees him as a brother -- a brother with whom she cuddles while watching movies and complaining about the latest alpha male to break her heart. The Dick in a Jar secretly awaits his female companion's revelation that emotionally abusive fucktards will never make her happy and that he is actually the man of her dreams, but he waits in vain.
Mark: So, what's up with your roommate and that dorky guy who always spends the night? Are they bumpin' uglies?

Shauna: Naah, he's just her Dick in a Jar.
by Pavlov's Cat January 31, 2011
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when a male is completely controlled by his girlfriend/woman/significant other, and constantly bails on his friends to be with her.
Person 1: Dude, Marco is being such a dick in a jar. I haven't seen him in months.

Person 2: What the fuck is a dick in a jar?
by MooseLLama June 6, 2009
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When you’re jamming with your mates and create the best number one selling song about getting your dick stuck in a jar
“I got my dick in a jar, while I’m driving my car. And I couldn’t go far, because my dicks in the jar (balls deep in the jar)”
by Waldpflanze April 5, 2021
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The unfortunate effect of being placed into the "friend zone" or "just a like a brother to me" zone by a potential romantic interest. Upon full maturity of the disease, the person is used in a "break glass in case of emergency" type booty call and then discarded...
There is a very fine line between being chivalrous and ending up with a case of "dick in a jar" syndrome.
by arjo_reich December 21, 2007
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When you’re jamming with your mates and create a number one selling single about getting your dick stuck in a jar
“I got my dick in a jar, while I’m driving my car, and I couldn’t go far because my dicks in the jar
by Waldpflanze April 5, 2021
Get the Dick in a jar mug.