@zebratron2084 @Leucrotta From what I can tell, it's "бумер". (specifically, short for бэби-бумер in the exact same way "boomer" is short for baby boomer)
@Thaminga @Leucrotta Thank you both!
@zebratron2084 it literally just occurred to me that “ok” is “ladno.”
@Thaminga @zebratron2084 What little I can find backs Vera up on this one (remember I learned Russian in hopes of studying lakes, not to annoy elderly American "patriots."