A guy who's name starts with a J (examples: Josh, Jordan, Jacob etc.). By default, a J guy is an automatic red flag in the dating world. A J guy generally embodies particularly undesirable traits which may be undetectable at first. These traits include (and are not limited to) cheating, ignoring, narcissism, fear of commitment, pushy, and being a huge douche lord in general. All women should be highly wary when dealing with any type of J guy (proceed with caution).
"My boyfriend Jake is being a huge jerk to me"
"It's to be expected. He is a J guy after all."

"Ooooo id watch out for him, he's a J guy...nothing good could come from that"
by Angry Orange Elf December 19, 2010

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