look up any word, like b4nny:
 
1.
1.To be stupid
2.To cause emotional/physical pain to a person.
"Why do you have to be so lumptious?"
by yorkie2002 January 23, 2014
 
2.
When my Grandpa's Lump Rice tastes really good !
Hey G'Pa your rice is really Lumptious
by G'Ma November 04, 2009