sloganize
[ sloh-guh-nahyz ]
/ ˈsloʊ gəˌnaɪz /
verb (used with object), slo·gan·ized, slo·gan·iz·ing.
verb (used without object), slo·gan·ized, slo·gan·iz·ing.
to utter slogans; sloganeer.
Also
especially British,
slo·gan·ise.