Top definition
Deep understanding of someone after living with them for some time.

The word itself is a combination of room (as in roommate) and ken.
Does your roommate want to go to trivia with us?

He doesn't want to.

Did he tell you that?

No, it's within my roomken.
by paul13243546 December 01, 2016
Get a roomken mug for your Uncle Abdul.
Jul 2 Word of the Day
Someone people turn to when they're sad who makes them feel better.
Dude, I was so unhappy about my girl, until I spoke to my serotonin donor who really helped me feel better
by jonfurstn1 November 27, 2009
Get a serotonin donor mug for your barber Beatrix.