Shitter shopping

The act of online shopping on a mobile device (phone, tablets) while sitting on the toilet. One would usually partake in shitter shopping while your supposed to working at your job.

Worker1 "hey where's Joey ?He's been gone for a half an hour now."
Worker 2 " he's probably in the bathroom shitter shopping for some black Friday deals "

Joey: "bro, I was totally shitter shopping at work and some guy comes and drops ass in the stall next to me and shits when there was clearly 10 other empty bathroom stalls . But I did manage to get some great deals on amazon.