The Kansai dialect. Culturally, it is associated with comedy (specifically, ツッコミ) and is sometimes imitated by people from other regions (エセ関西弁(かんさいべん)) to exploit this.

(historical) chief advisor to the Emperor / domineering, hectoring / (historical) a nickname for Toyotomi Hideyoshi

(an act of) washing one's hands and rinsing one's mouth

to wash one's hands and rinse one's mouth

finishing the race, reaching the finish line, staying the course

finish the race, cross the finish line, stay the course

farewell party, going away party

a send-off

to give someone a send-off

feeling of satisfaction