To fill in a test bubbling the answers randomly, like placing christmas bulbs on a tree, to guess because you don't know the answer or are to lazy to do it right.
I just christmas-treed the final exam because I always cut class and didn't know anything.
by paige dodge February 15, 2007
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1. (adj) When a service or utility is repaired or patched together haphazardly rather than correctly in an effort to save time or money; often resulting in frequent accidents, failures, or outages. The resulting jumbled mess of wires often resembles the lights and cords on a Christmas tree.

2. (adj) A sub-par, often dangerous and shoddy wiring job consisting of a jumbled mess of cables, exposed wires, and, shorts-outs; that is the result of numerous shortcuts taken by someone to save time or money.

3. (adj) Any utility or service that was repaired or engineered in a sub-par manner out of sheer laziness or ineptitude.

Synonyms: half-assed, shoddy, sub-par, piss-poor
Whomever wired this fusebox did a shoddy job, it's christmas tree'd together.
by DomPrice January 29, 2012
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When one person is pranked by another by filling his or her front yard with Christmas trees. This feat can usually only be accomplished in the two weeks following Christmas, when trees are tossed out and left on the curb for pick-up. A popular and effective method is to pack many trees against the victim's front door, so that when he or she opens said door, the trees tumble into the house, blocking the way out. Christmas treeing is not limited to front yards, it can be done in houses, rooms, cubicles, cars, or any place that a tree or more will fit.
"Did you guys end up treeing that pansy Derek's house?"

"Yeah man we Christmas Tree'd him hard bro, we hit him with 27 trees"
by wath20 January 20, 2010
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