look up any word, like dirty sanchez:
 
1.
To do something for no reason other than to have a laugh.
Jo: lets go and see that new film.

Jake: why?!, its crap.

Jo: Just for Shits and Grins.
by viperdick April 09, 2012
 
2.
To do something for know reason than to have a laugh.
Jo: lets go and see that new film.

Jake: why?!, its crap.

Jo: Just for Shits and Grins.
by Harrison90 October 01, 2006