sloganize

From slogan +‎ -ize.

sloganize (third-person singular simple present sloganizes, present participle sloganizing, simple past and past participle sloganized)

1. (transitive) To produce one or more slogans; to convert an expression into a slogan.
2. (intransitive) To repeat slogans.
   • 2000, Nick Tiratsoo, Labour's First Century, page 296:

     In the recent past, too many had assumed that electioneering meant simply sloganising about capitalism's iniquities.

• sloganizer