team up with

team up (with one)

1. To join someone or a group to form a team or association. By teaming up with the foreign distribution company, we've been able to quadruple our sales in under a year. If we teamed up, we could solve this crime in no time.
2. To join two or more people together into a team or association. In this usage, a noun or pronoun can be used between "team" and "up." I'm teaming you up with Jenny to write this report. I can't believe they teamed me up with Tommy Jenkins—he's the slowest runner in the entire school.
See also: team, up
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

team up with

Form an association with, as in Our pediatrician is teaming up with specialists in such areas as orthopedics and cardiology. This expression alludes to the harnessing together of draft animals, such as oxen. [First half of 1900s]
See also: team, up
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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