I think the tricky part here is the /fs/ of “enough’s”. We always make the contraction in this idiom, so there should be no vowel between the sounds. Notice the pronunciation of the spelling pattern “ough” as /ʌf/. This is one of several possibilities, which is why you need to be able to read the phonemes (Symbols).
This strange phrase means “It’s time to stop now”. We often say it when we’re beginning to lose patience.