Compare wacko with other words:
wacke vs. wacko
wacko vs. wacky
wacko vs. whackjob
nutbag vs. wacko
loon vs. wacko
hurrah vs. wacko
irrational vs. wacko
eccentric vs. wacko
amusingly vs. wacko
wacko vs. whacko
nutcase vs. wacko
psycho vs. wacko