Person who receives multiple degrees and keeps taking courses instead of holding a profession related to the degrees earned. Can be a compliment or an insult depending on the speaker.
Ex. 1: a compliment
"Man, I think you're so cool for writing a dissertation on Mesoamerican maize fertilization. You're a real professional student!"

Ex.2 an insult:
"Hey Jack, won't you get a real job and quit being a professional student?"
by ignor September 29, 2004
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Someone who provides Urban Dictionary definitions during work hours and gets paid for it.
When the boss is not watching, Greta is a professional urbaner.
by Chili2 March 15, 2016
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The politically correct term for a worthless, lazy bitch who don't make money and don't do shit.
My wife says she be a professional volunteer or sumthin...nah, she's just a lazy bitch who spends my green.
by Sugar Jay July 02, 2018
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One who waits until the very last second to do anything, but still gets it done. One who will do anything and everything he/she can to put off work, including writing definitions into the Urban Dictionary. One who procrastinates in every aspect in his or her life.

"What do you do for a living?"
"Well, I'm a Professional Crastinator"
"What's that?"
"Hold on, I'll tell you in a minute."
by Burtrum May 13, 2008
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When you spend time on the toilet at work and get paid for it.
John enjoys spending at least an hour a day taking a professional dump.
by Chili2 March 10, 2016
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A Professional Stoner is someone who smokes marijuana on a daily basis from once a day or to an all day activity. Yet what separates a Professional Stoner from a regular stoner is that a Professional Stoner is a PRO. They have the ability to go on with their daily life like a normal average-day Joe. Professional Stoner's do not let marijuana take over their lives and make them incompetent or lazy. Marijuana acts as a stress reliever for the smoker to make life a little easier to live with. Professional Stoner's are active and productive everyday because they have the ability to smoke marijuana as much as they like as well as continue with their schooling, work and responsibities.
Amy and Tuan are Professional Stoner's because they smoke marijuana everyday and still hold their responsibilities in school, work and at home.
by Srenots 8] March 14, 2010
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An upscale prostitue who services a small number of men (usually executives) on a regular, long-term basis in exchange for them contributing to her financial well being. Each man may call on her anytime on his regular day (eg. 1st & 3rd Tuesdays). If he needs her for a Friday,Saturday or other days, additional negotiations are necessary.
I could never be a protitute - having to hustle for johns and taking risks, but being a professional mistress is great because I am in control of who I see and when, and the guys I pick really take good care of me.
by myplayfulvixen October 10, 2007
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