Here's what rhymes with slouly.
jowly Words that almost rhyme with slouly
houri dowry loudly hourly lousy rowdy frowsy frowzy slouchy proudly cloudy drowsy roundly stoutly downy gouty sourly brownie cowrie dowdy grouchy mousy dourly howdy mouthy mousey towhee townie flouncy townee grouchier county bounty soundly bouncy housefly scroungy devoutly foundry debauchee profoundly unsoundly paramountcy