ad-libbed line, and not a particularly polite one, that wasn't even that funny.
ad-libbed a bit.
All the stuff with Vince and me was all ad-libbed.
For example, if one person were to say "You're gonna need a bigger boat" you would rightly respond "Jaws" as this is the line famously ad-libbed by Roy Scheider playing Amity police chief Martin Brody.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.