Boom-Ching-Cha-Cha-Cha

What you're supposed to say after every line of the birthday song.

The guys say boom
The gals say ching
and we all say cha cha cha
At every Cha-cha cha you're supposed to do a supposed to do a cringy dance step

Birthday Kid: please don't tell them.. do the Boom-Ching-Cha-Cha-Cha and I WILL END YOU
Guy: *starts singing happy birthday song* C BOOM!
Gal: CHING!

Everyone: Cha-ch-
Birthday Kid, glaring at guy: 🙄🔪🔪🔪