Poundland Halloween lights 2014.

A really nice set of lights from Poundland which uses 14 3mm side-emitting LEDs to illuminate push-on letters that spell HAPPY HALLOWEEN. One of the nicest things about this set is that the forward voltage of the green LEDs is quite low, so if a string is run on a pair of Nickel Metal Hydride cells (NiMh) they will remain bright for most of the discharge curve.
But here's a challenge... Last year Poundland brought out "Merry Christmas" lights and we had fun at work rearranging the letters into rude messages. We also had a mini competition to see who could spell the single longest word from the letters available. One of the guys got an absolutely huge word out the letters (I can't remember what it was).
So what's the longest single word you can make up using just the letters from this set of halloween lights? Post it in the comments section below. You can only use the letters as if they were going to be pushed back onto the lights, so no multiple use of individual letters or inverting them to turn a W into an M.
H A P P Y H A L L O W E E N.