noun | kuh·stoh·dee·uhl waa·lit
A custodial wallet is like giving your money to a crackhead and telling them to "hold it for you" - you're basically trusting someone else to keep your shit safe, even though they might be sketchy as hell. It's the crypto equivalent of letting your mom hold onto your allowance because you can't be trusted not to spend it all on Pokémon cards and Juul pods.
Example
"Using a custodial wallet is like putting your dick in a glory hole - you might get a nice surprise, but you also might get your shit chopped off by a rusty knife. Proceed with caution, my dudes."
"I lost the password to my custodial wallet and now I gotta email some random 'support' address and beg them to give me back my funny internet money. Feels bad man."