What does "I’ve had a little bit too much" mean?

I don't understand this sentence:

I’ve had a little bit too much.

What does it mean?

PS. My native language is Ukrainian (Russian)

Solution 1:

It usually means you have had too much of an alcoholic drink, though it can be used to refer to too much of other things as well.

Little bit suggests to me the image of exceeding your limits.

Solution 2:

As Jeanne Pindar and Jasper Loy say, the intended meaning is "I've had a little bit too much to drink." But the phrase isn't usually heard until the speaker has had a great deal too much to drink, and so has a euphemistic quality about it.

Solution 3:

It usually means the person drank slightly too much alcohol, that is, they are slightly drunk. A similar phrase is "I've had a few too many."