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1. An error made generally through lack of experience. A shortened form of schoolboy error
2. Derogatory phrase used when someone makes an error or goof or misplays

See also schoolboy defending
*Brad makes misplay*

"Schoolboy!"
by Eddie Ross June 28, 2006
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3
THAT KID in grade/high school that never did anything wrong in fear of the repercussions, i.e. bad grades, people thinking less of him, or getting yelled at by mommy. usually a tall lanky kid that goes to college and becomes a pothead!
why do you study so much lapo, your such a SCHOOL BOY!!!
by jg85 December 30, 2008
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4
British slang. Short for a "schoolboy mistake".

1. A trivial mistake that an inexperienced person might make.

2. A short-sighted mistake that could have been avoided with more care.

Similar to a "rookie mistake" in US slang.
You wore sneakers to the hottest nightclub in town? No wonder you got turned away at the door. That was a schoolboy.
by wizurdUvRythmn February 28, 2011
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5
A way of pissing urinating against a wall during a drunken state whilst pulling your keckstrousers (including undiesunderpants) down to your ankles and lifting up your shirt. This is known as a schoolboy as it replicates the way little children piss in urinals in public toilets and the way we all pissed as a school boy. A true schoolboy will involve pissing no handed whilst holding up your shirt with both hands.
"Did you see Callaghan doing a Schoolboy at Leedsfest whilst Arcade Fire played? What a dire choice of headliner, although they are a great live band and help Leeds maintain its musical credibility".
by SchoolboyCallaghan August 31, 2010
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6
Slang-term for Codeine back in the day.
Man, I am high on schoolboys! Let's hang out after school and do some schoolboys together! Pastor John is in rehab for doing schoolboys. Can I get a schoolboy from you?
by 68whisky February 21, 2011
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7
I have read in many and varied sources that "schoolboy" is street-talk for codeine. Now, somewhere or sometime perhaps it is or was, but not ONCE, as in never, during my reasonably extensive research regarding various street scenes did I ever hear it used. T3s, T4s, codeine...yeah, those one might hear...but schoolboy? Me not think so, unless it is just something pre-1960s and fell out of use.

Dude, I just scored a scrip for T4s 'cause I told the doc my BACK hurt!
(One would NEVER say that one just scored some "school boy.")
by Vico-man December 07, 2005
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