62 entries under slang topic. ×

7
nutter(noun, sick, mad person)
6
not all there(noun, adjective, idiom, sick)
6
nutcase(noun, sick, mad person)
5
dopey(adjective, knowledge, ability, foolish)
5
schizo(noun, adjective, foolish, sick)
4
ding-a-ling(noun, wise, crackpot)
4
dingbat(noun, wise, crackpot)
4
jerky(adjective, light, knowledge, ability)
4
luny(noun, adjective, sick, mad person)
4
weirdie(noun, wise)
3
flake(noun, sick, mad person)
2
nutjob(noun, sick, mad person)
1
basket case(noun, sick, mad person)
1
coo-coo(noun, sick, mad person)
1
crack-brain(noun, sick, mad person)
1
crack-skull(noun, sick, mad person)
1
fruit-cake(noun, sick, mad person)
1
goo-goo(noun, sick, mad person)
1
goof(noun, sick, mad person)
1
jerk(noun, sick, mad person)
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APASmart Define. (2015). loony thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/loony/thesaurus/synonyms
ChicagoSmart Define. 2015. "loony thesaurus" https://smartdefine.org/loony/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, loony thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/loony/thesaurus/synonyms>.
MLASmart Define. "loony thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/loony/thesaurus/synonyms>