have a cow

Etymology
. Popularized by the TV show The Simpsons where it was one of the catchphrases of Bart Simpson.

Verb

 * 1)  To get angry; have a fit.
 * My mom had a cow when I came in late.
 * My mom had a cow when I came in late.
 * My mom had a cow when I came in late.
 * My mom had a cow when I came in late.
 * My mom had a cow when I came in late.