Dude I am so sorry, I was watching this sick adult film and filled your Adidas sock with my warm boof. It's pretty sticky and crusty right now but you better watch it because I wouldn't be surprised if it grew arms and legs and started walking around like a little human.
Within certain groups and communities, it refers to marijuana. Based off of several popular memes. This slang term for cannabis has an advantage because most non-stoners won't recognize it, whereas if you just said "weed" everyone would flip their lids.