Rowan or Martin is a reference to the popular American comedy duo, Rowan and Martin, who were best known for their television show, 'Laugh-In'. The two comedians, Dan Rowan and Dick Martin, co-hosted the show from 1968 to 1973. They were known for their quick wit and comedic timing, as well as their catchphrase, 'Sock it to me!' which became a popular phrase in the late 1960s. The crossword solution for the term 'Rowan or Martin' is COHOST, which accurately describes the role of the two comedians on the show.