look up any word, like muddin:
 
1.
A french word meaning "a little something extra"
used primarily in the south. Especially New Orleans area.
Sam:I only ordered 2 bagles
Mark: I know, the third is a lagniappe
by Gorgeous Me February 21, 2005
 
2.
free gift given by a merchant after a purchase to insure a return visit
Don't forget your lagniappe,Mrs. Jones, and see you soon.
by Bobby Chappell July 04, 2003
 
3.
Someone fucks you and you get a reach-around.
Spike: Mmmmm. Fuck that ass.
Steve: Thanks for the lagniappe.
Spike: Shut up, bitch!
by lambzilla February 14, 2008