verb- To calm down, quiet down, or keep it down.
1st and ten SIMMA takes the snap drops back fires DOWN in the endzone for a touchdown NOW cmon hits the extra point. It's SIMMA to DOWN followed by NOW and it's SIMMADANA!!
di CarolinaGuy 16 maggio 2003
1 more definition
slang for simmer down now,also means calm down now
di Matt 10 febbraio 2003