B-U-R-P spells you-know-what
In the seventh book in the popular George Brown, Class Clown series, George learns the hard way that an onion a day won't keep the Super Burp away - despite what his best friend Alex might've hoped. It's bad enough that one of the pesky, magic belches escapes at the mall and another lets loose on a miniature golf course, but George is representing his school at the countywide spelling bee. A burp at the bee could definitely spell D-I-S-A-S-T-E-R