Y.o. years old

Interjection

Yo (YOH) is a slanginterjection,^[1] commonly associated with North American English.

Yo etymology

It was popularized by the Italian-American community in Philadelphia, Pennsylvania, in the 1940s.^[2]

Although often used as a greeting and often deployed at the beginning of a sentence, yo may also come at the end of a sentence and/or may be used to place emphasis on or to direct focus onto a particular individual, group, or issue at hand, or to gain the attention of another individual or group.

It may also be used to express excitement, surprise, disbelief, enthusiasm, anger, or amazement.

Etymology and history

The interjection yo was first used in Middle English.^[3][4] In addition to yo, it was also sometimes written io.^[5]

Though the term may have been in use in an isolated manner in different contexts earlier in English, its current usage and popularity derives from its use in Philadelphia's Italian American population in the twentieth century, which spread to other ethnic groups in the

when is your fault coming out

when is your luteal phase