Definition of the word latch on

The phrase "latch on" has its origins in the world of farming and animal husbandry. It originally referred to the action of a calf finding and attaching itself to its mother's udder, known as nursing or suckling. The calf would use its strong instincts and sense of smell to "latch on" to its mother's teat, securing a steady source of nourishment. This farming-related meaning of the phrase began to expand in the 20th century, as it was applied metaphorically to human actions. In particular, "latching on" became a useful term to describe the way a person might attach themselves to a profitable or successful situation, much like a calf latches onto its mother's udder for survival. Its timeless meaning continues to be popular in everyday English as a way to describe everything from babies discovering a prime breastfeeding position to adults discovering a profitable business opportunity.