Jack of all trades, master of none
Someone who is good at many things but excellent at none.
Become A (Dungeon) Master Of These D&D Slang TermsFor the over 50 years that D&D has been around, a lot of jargon has developed around the game. Whether you're a total n00b or a Dungeon Master, knowing the lingo of D&D is a key part (of the fun) of its gameplay.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.