Used when going to the toilet just to catch a break, without taking a dump. Poopretending
"My girlfriend was so annoying last night, I had to go sham poo."
"I hate my job, the only break I get is when I sham poo"
"On an airplane I go sham pooing just to give my legs a stretch"
"Oh God, your crap smell all the way out here" "Your mind plays tricks on you, I just sham pooed"