'Boomski' is frequently used in sales professions to act as a pronoun, interjection, or adjective. When leaving a voice mail you can use 'Boomski' as a fun way to start the message or it can also act as a sign off. In some cases 'Boomski' can also be used as a descriptive noun. When 'Boomski' is used as an adjective to describe another boomski this usually refers to a top performer.
"Let’s have a great week. BOOMSKI!"
"Nice call brother, that was a boomski close."
"You were on fire yesterday. You are the boomski to the boomski!"