ˈmother lode , moth‧er‧lode /ˈmʌðələʊd $ -ðərloʊd/ noun [countable usually singular] American English

1. a mine that is full of gold, silver etc

2. a place where you can find a lot of a particular type of object
mother lode of
The Sharper Image catalog is a mother lode of men’s gadgets and toys.

3. hit the mother lode informal to produce or find something that will make you very rich, happy, or successful:
They hit the mother lode with their second album.

[TahlilGaran] Dictionary of Contemporary English ▲