A term used in the form of "emotionally" connecting with somebody new.
Derived from the construction toy/puzzle known as "k'
nex" where in which pieces of
plastic are connected together to
make buildings, cars etc...
For example,
Two guys are in a bar,
one guy goes over to a girl and they talk for half an hour, gaining her phone number. The other
guy then nudges him and says
"You totally just knexed her man!"