To be repetitive and boring
This english class is really monotonous
by Neo-Generation November 06, 2003
no variety, same old thing
Steve is really monotonous in the sack
by hailey October 17, 2004
doing crazy shyt all the time, something that you might think is crazy, out of control ect...
Marcello, your monotonous!
by ajismonotonous March 04, 2012