A bad dog is a dog that is misbehaved and usually punished verbally for its actions by saying "BAD DOG!"
My dog Rowdy is a very very very very BAD DOG!
Person 1: "I met the most perfect guy/girl online!"
Person 2: "those aren't real you fucking moron. Go touch grass"
stonks is referring to the bald dude from that one meme. usually replacing stocks
gamestop stockholder: STONKS TO THE MOON
some broke dude: damb, I should have got some stonks.