1 definition by JAMEL ERV

Top Definition
1 To get encouragement 2 to have a strong attitude about wat u r doing 3 TO GET BACK IN THE GAME 4 to get agressive
1]IF U R ABOUT TO PAFORME IN A LIVE SHOW AND UR NERVOUSE YO HOMIES WOULD SAY MONSTER UP

2]A man my yapper iz low , boy u need to monster up to get that gudda

3]when you playing basketball and a big guy pushes u around then u need to monster up
by JAMEL ERV April 14, 2006

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