A term used to express excitement and anger and about any emotion imaginable. But be careful, people might assume you are literally giving birth to cows. If you choose to play along with this childish idea, make disturbing groans while squeezing your buttcheeks together. And people may ask you where you keep your cows. Tell them that you keep them in a pin behind your house!
(Accidentally drops phone and cracks screen)
Suzzy: Oh my goodness, I'm gonna have a cow!
(Friends throw a surprise birthday party)
Friends: SURPRISE!
Herald: AH! I'm gonna have a cow!
(Also consider... Trips and falls on school stairs in front of hot seniors)
Tina: About 24 cows just escaped my pin... ;(
Suzzy: Oh my goodness, I'm gonna have a cow!
(Friends throw a surprise birthday party)
Friends: SURPRISE!
Herald: AH! I'm gonna have a cow!
(Also consider... Trips and falls on school stairs in front of hot seniors)
Tina: About 24 cows just escaped my pin... ;(
by kakattack3000 July 17, 2015
An admonition spoken to a male seahorse who is concerned that he's gonna give birth to sea CATTLE instead of sea HORSES.
Most creatures reproduce though the female, with the male providing fertilization of her eggs while their still "in her oven". But male seahorses do somewhat the opposite --- the female deposits her sterile eggs into the male's sperm-filled egg-pouch, where the eggs are fertilized and remain till they hatch. Once in a while, though, something goes wrong with the process, and the male becomes concerned that his eggs are turning into aquatic cattle instead of horses, prompting others in his clan to anxiously admonish, "Don’t have a cow, man!"
by QuacksO March 20, 2018