co-host

A joint host alongside another (compare co-star).

One who is quickly causing controversy — although his 249K Instagram follower tally is a far cry from Tate’s 4.6 million before Tate was banned — is Myron Gaines, co-host of the Fresh and Fit podcast which markets itself as the No. 1 men’s podcast in the world.

To act as a joint host.

To store data on a shared server (as in web hosting).