If you are part of a telegram group, you will find this glossary very useful.
BAGS: the coins you are planning to hold long-term
BTFD: "Buy the fucking dip". Good opportunities to buy below value will not last long
DYOR: "Do your own research" If you want to success in investing you should start studying and follow your own path
FIAT: Government issued currency
FUD: "Fear, uncertainty, and doubt" this term outlines initiatives to scare the weak-handed holders into selling their positions
HODL: The misspelled word HOLD was posted first in 2013. The community later on, turned it into a verb
LAMBO: if you can buy a Lamborghini, you are cryto-rich
SHITCOINS: The low-cap coins
SATS: or satoshis, the smaller unit of a bitcoin
WHALE: The ones who manipulate the market, because the have enough coins to provoke big price movements
I am sure this glossary is not complete. Maybe you can add more.