Definition
For no particular reason, just because it is fun or entertaining; or to relieve boredom.
Origins
Possibly from the act of shitting (i.e. nonsensical acts or farting) and then giggling as a result of it.
Also Said As
- for grins
- for the heck of it
- for the lulz
See Also
- for kicks
- kicks and giggles
- shits and giggles
How People Actually Use It
For no real reason other than amusement.
"Mike fucked a grandma for shits and giggles."
Source: Urban Dictionary