👉 The word "yeehah" is a term used in Nigerian Hausa language, which means something that is happening all at once or is unexpected. Definition: - It refers to an incident where two people meet unexpectedly after they have been separated for some time. - It may also be used as a slang term for a situation in which someone has done something unexpected and happened out of their control. - The word "yeehah" can also refer to the act of getting excited or nervous about an upcoming event, especially if it is not happening as expected.