Mother Bastard 

An adjective or noun used as an exclamation of disappointment and/or rage

When you talk to your siblings, you become an utter mother bastard sometimes

Mother Bastard by Call me "Duke" November 10, 2010

ball bashing mother fucking bastard 

someone who squashes sandwiches

girl1: u ball bashing mother fucking bastard
girl2: wat?
girl1: u squashed my sandwiches!
girl2: sorry, forgive me

ball bashing mother fucking bastard by simple immortality November 11, 2006

motherbastard 

A person who causes problems or get gets in the way of production.

That Motherbastard did not help me paint the walls.

motherbastard by Robert M Richardson October 25, 2004

Motherbastard 

a person who likes the Dallas Cowboys and dresses in drag, also likes to watch porn all day on his computer while at work, he also plays cames

Look at that motherbastard on the phone

Motherbastard by real deal October 22, 2004