colon queue-jumper
A completely unwarrented and unexpected arrival in you back passage during a quiet fart.
Laundry maid: "sir there appears to be a spot of shit in your briefs"
Master: "oh that, thats just a troublesome colon queue-jumper that got the jump on me as I was waiting for comunian"
Master: "oh that, thats just a troublesome colon queue-jumper that got the jump on me as I was waiting for comunian"