Hooking up means anything BUT sex. Some people use to for just making out, but usually its used for oral sex. Hooking up means any sexual act with a partner of either gender. Making out, oral sex, intercourse, manual stimulation and anal sex would all apply.

How common are tinder hookups?

A 2020 survey found that around 22% of people use Tinder for this very purpose. Compare that to 5.1% from a study done in 2017, and youll see that theres definitely a trend going on here: an increasing number of people use Tinder primarily to look for casual encounters.