a cash cow

a business or a part of a business that always makes a lot of profit The British newspapers are the group's biggest cash cow, earning nearly 40% of group profits.

Common Names:

Name	Pronounced	Usage
Dixie	['diksi]
MÁIre	MOI-ra	Irish
Hila	-	Hebrew
Melanija	-	Serbian, Macedonian, Slovene, Latvian, Lithuanian
Ellen	['elin]
Jacinthe	zha-SENT	French