Noun. Someone who performs exceedingly well at the beginning of a course, but fails to continue to do well.
Verb. To do very well at the beginning of a class, but do poorly later on.
Verb. To do very well at the beginning of a class, but do poorly later on.
Dude, Mike totally aced that first exam, but then nirbed out on the final.
Yeah man, Mike is such a nirb.
Yeah man, Mike is such a nirb.
by The Nirbster November 29, 2012
Get the nirbmug. 