It is when you give your friends or family an excuse to get out of something by saying you need to relax, then go beat it.
Girlfriend: Heyy lets go shopping tomorrow! :)

Boyfriend: umm no i need to relax..

"Hey dude lets go fishing today"
"not today, i need to relaxtabate"
by LBD21 April 26, 2010
Get the relaxtabate mug.