What does AC-130U Spooky mean?

AC-130U Spooky meaning in Urban Dictionary

Heavily-armed gunship. Changed from a C-130 Hercules and a variant of this initial AC-130H Spectre. Armed with a 1× 25 mm (0.984 in) 5-Barrel GAU-12/U Equalizer gatling weapon, a 1× 40 mm L60 Bofors cannon as well as the mommy, a 1× 105 mm (4.13 in) M102 howitzer. If this gunship is ever proceeding your way, your shit will be fucked.