Definition of nimbu pani in English:
nimbu pani
noun
In South Asia: a drink consisting of lime (or sometimes lemon) juice with sugar (or sometimes salt) mixed with ice or water.
Origin
1960s. From Hindi nimbū pānī lime and water from nimbū lime + pānī water.
Pronunciation
nimbu pani
/ˌnɪmbuː ˈpɑːni/