look up any word, like hipster:
 
2.
"A capella" definition is wrong. Not usually used by rappers, but rather by people that actually...sing (and sing well) without instrumental accompaniment. Please see

http://www.singers.com/a-cappella.html

...for more enlightenment on what a cappella is.
"Hey guys, let's sing real a cappella, with no instrumental accompaniment. And better yet, let's actually sing and use musical notes in our music and not chant simple rhymes and curse words in a monotone like the music artist b rabbit does in 8 Mile!"

"Sounds great! Wait, b rabbit is a music artist? Since when?"
by Tie Guy February 05, 2009
 
1.
A genre of music using no instruments besides vocals.
Examples of groups are Rockapella, Three Men and a Tenor, and Ascending A Cappella.
by Kevin December 06, 2003
 
3.
A cappella (italian): like the chapel.

voice music without instrumental accompaniment.
"The band died when they cut the power but Sid just sang a cappella like he never heard them anyway."
by yogipete July 28, 2008
 
4.
To fuck without condom
There was no place to get a condom, so we did it a cappella.

by shady ruflo March 09, 2006