‘=>a drop in the bucket
->Meaning: If an amount is a drop in the bucket, it’s a very small portion of the amount that’s needed.
▪Our government’s sending a thousand tons of food, but that’s just a drop in the bucket compared to what’s needed.
▪I know twenty dollars is just a drop in the bucket, but if everyone gave that much it’d make a big difference.
Note: The British and Australian equivalent is “a drop in the ocean”.
Variety: This idiom is typically used in American English but may be used in other varieties of English too.