look up any word, like the eiffel tower:
 
1.
A true hero, capable of being born and saving the world!
That fireman sure is bigmoose.
by bobbar September 25, 2005
 
2.
A triumphant and often impressive act or feat, usually performed by a hero.
*Bob kills a yak from 200 yards away with mind bullets*
"What a bigmoose, Bob!"
by CaptainSuperDuper September 28, 2005