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A fanfiction in which several fandoms interact with one another.

Cross-overs largely involve time travel and interdimensional travel to meld two different fandoms.
I was confused when Dr. Gregory House was treating Harry Potter's illness, but I soon realized that I was merely reading a cross-over.
by Levstrong November 13, 2007
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Mar 1 Word of the Day
One who has a mania for music.
I am a melomaniac.
by Larstait November 14, 2003
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Cross over

1. To go to the spiritual realm when one dies and leaves the body.
2. To make somebody's spirit (persons or living creatures) go to the spiritual realm.
1. Earthbound spirits have not crossed over because they have some unfinished business / I often think about how it shall be when I cross over into the light.

2. Melinda is a medium who sees and speaks to earthbound spirits and crosses them over.
by Ezechiel February 15, 2007
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A crossover is that type of person who once belonged to a distinct subculture who then suddenly changes their style and behaviour to another subculture, usually coming from a change in fashion trends.
Person 1: "Hey, check him out, he doesn't know what group he's part of!"

Person 2: "He's such a crossover."
by MRTG July 27, 2011
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The characters from one story world meet with the characters of another.
The Jimmy + Timmy Power Hour (Fairly OddParents/Jimmy Neutron)
by DanMat6288 July 24, 2004
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1.n. A move in basketball in which a person jukes while bouncing the basketball from one hand to the other usually leaving the defender going in the opposite direction . It has become increasingly popular as of late due to talented users such as Allen Iverson, Tim Hardaway, And 1 team, etc.
Yo, he just broke ya boy's ankles with that crossover.
by barrettDC June 29, 2005
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A mixture of an SUV and a car. A reletively new introduction to the automobile worlds- but all these car companies did was bring back "station wagons" and call them something different- and stupid people are buying it!
Have you seen the new Ford crossovers?
by Judge Judy's Nipples April 23, 2007
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