whoopee-doodle-doo
An early-morning fart that is so loud and/or odiferous that it wakes everybody up.
I saw a short YouTube video about failed "as seen on TV" products which stated that the much-hyped activated-charcoal mattress-pads were not really all that effective at absorbing odors from a person's whoopee-doodle-doos, but then elsewhere I saw testimonials that glowingly-praised the performance of fart-absorbing underwear, so I dunno what to think.