stupid is as stupid does
Definition from Wiktionary, the free dictionary
[edit] English
[edit] Etymology
Apparently modeled on handsome is as handsome does. Attested since at least 1862, but popularized (perhaps independently) by the 1994 film Forrest Gump.
[edit] Proverb
- A person's intelligence may be judged by the wisdom of his or her actions.
