What is takes a licking and keeps on ticking?

"Takes a licking and keeps on ticking" is a popular advertising slogan that originated in the 1950s for the Timex watch company. It was used to highlight the durability of Timex watches, which could withstand various forms of abuse and continue to function.

The slogan became so popular that it entered into popular culture and was used to describe not only Timex watches, but also other products that were seen as resilient and durable. Today, the phrase is often used in a more general sense to describe anything that can withstand wear and tear, including people who persevere through difficult situations.