spliced fart

A.k.a. "piggybank" or "cumulonimbus" fart. this uniquely-impressive anal-based audio-delight consists of a number of much-smaller farts that have been carefully "layered" or "stockpiled" inside Uranus, so that they create a single but super-humongous "eruption" whenever it is that you do decide to "let loose".

There are a number of reasons that one might create a spliced fart --- maybe you don't really produce all that much gas, and so you wanna really "make it count" on those comparatively-rare occasions when you do. Or perhaps you are a bit concerned about a certain place you are going and/or someone you are having to meet, and so you wanna "bring along a little spare ammo" just in case.