Units:
mega-dude - archangel
buddies - centaurs
exactly the same - gnomes...
wood - dendroids
boxers - all golems
lamp-bearers - djinns
meat grinder - naga queens
impotent ones - imps
horned ones (meaning weak) - demons
evrits - efreets
Ut-ut-ut-yu - devils (because of how they beckon with their finger)
zombies - zombies
donkeys - archers in the swamp
urks - orcs
swallowers - troglodytes
stormtroopers - elemental storms
water - water elemental
exhibitionist - magic elements (although it's been used before, I also call them that)
Magic:
slow-mo - slow
blessing - blessing
bag of dicks - explosion
phallus imitator - necromancy enhancer