How do you define a raincoat (mature people only)

So I am headed to India this week where it appears to be raining cats and dogs. During a conversation with my friend Zach I thought I would share my frustration at having to buy a raincoat (and how **#*@ expensive they were).

Enjoy the following conversation:

amdkyle: rain jackets are expensive
amdkyle: 149 bucks
{ZACH}: whats a rain jacket?
amdkyle: ya know like a jacket thats sorta like plastic
amdkyle: so its not warm
{ZACH}: IOHHH like a condom you put of your shoulders

If you can't be amused by your friends, who can you be amused by?