Someone whom writes their definitions in a fashionably disastrous order on Urban Dictionary by highlighting every single word to make the definition 'sand out' among the other more proper definitions.
"Did you see Jessica's "Peanut" definition on Urban Dictionary? She just highlighted every single word."

"What a Highlight Whore."
by Mister Cookie January 15, 2013
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When you are using a highlighter, you may become "highlighter happy."
This means that you when you put your highlighter down to highlight, you cannot stop drawing. Soon, your whole paper may be colored with drawings and brightly colored lines.
Guy1: "Dude! What's all over your paper?"
Guy2: "Highlighter, man. I got a little highlighter happy."
by /-/3110 March 6, 2011
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When you take a shit and you wipe your ass so many times and it just doesn’t stop staining the toilet paper, your asshole then becomes a highlighter due to the amount of wipes it takes to flawlessly clean your asshole.
Hey dan why were you in the bathroom so long? I had a highlighter shit.
by Sirk331 September 1, 2019
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The act of cramming ones own feces into the complimentary hotel hair dryer so that the next unsuspecting person to use it gets a head full of brown highlights.
The hershey highlighter should only be used at seedy grungy hotels that you will not be returning to and at the same time encouraging the next guest to seek other hotels for future occasions.
"This hotel was kicking us out and i decided to leave a hershey highlighter in the room."

"Jane i really love how those hershey highlights bring out your eyes"
by Dirty Scoundrel March 3, 2007
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Hand cramping and spams from excessive highlighting and writing; seen most at the start of the school year after summer break.
"Chemistry has so many notes, I've got highlighter's hand now."
by MadisonOne August 28, 2009
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Term for a student who tends to highlight almost every part of an academic text he/she is reading, thus defeating the purpose of highlighting in the first place. Typically people who are attentive students but can't grasp the actual significance of what they're reading.
Tim was ashamed to find Janie had indiscriminately highlighted virtually every sentence in her packet about Kafka. It all made so much sense now. She was a highlighter abuser.
by Jacob Sisson August 19, 2006
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When a student highlights more than 50% of the text on a page, and thus ends up defeating the whole purpose of highlighting what is important.
Girl: Can I borrow you bio book before the test
Other girl: here you go.
Girl: Dude you highlighted the entire page. You have major highlighter syndrome.
by johnnymackser September 25, 2009
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