by the way...

something your friend says after an unpleasant conversation youve had with them just as you have angrily turned your back on them and leaving the room or walking away, it is used to piss you off even more as if you dont have enough shit to deal with already

*your friend just told you he trashed the whole house you foolishly left him on Friday night to party in with friends*

Me: You did what?? Im going home now to fix this shit...
Friend: by the way... I took some of that money from your piggy bank and ordered pizza for the hobos in the park, now there are more of them lined up in your yard and on drugs, plus theyve peed all over the place. good luck man!