Ceci n’est pas une pipe

A recession is two consecutive quarters of negative gdp growth

A depression is a prolonged recession that lasts for a few years and reduces gdp by more than 10%.

Females have XX chromosomes and a vagina

Males have XY chromosomes and a penis. ‘Penis, Penis Penis, LOL.’ See DoD for historical references to said phrase.

Men cannot breast feed as they have no mammary glands or ducts. Hence the word ‘mammal’ to describe that branch of the evolutionary tree.

A vaccine actually prevents the contagion and spread of a virus by training the immune system to kill said pathogen on sight.

I could go on…but yinz get the point.