look up any word, like the eiffel tower:
 
1.
To wed a partner with a social status well above one's own.
Senator Kerry knows how to marry up.
by Ken Marsh October 21, 2005
 
2.
An ambiguous term which is used to reference one useless piece of information to another equally useless piece of information.
“ Marry up this spread sheet with your tracker”
by Midmcnasty October 20, 2005