To lie shamelessly. Functions as a sarcastic description of someone talking utter nonsense, lying shamelessly, making up wild excuses, or wasting time with incoherent rambling.
Хватит пургу мести! Достали! На кой хрен панику сеять?!
Stop spreading rumours! I’ve had enough of this! Why are you trying to create panic?
(Sagittarius @ kyron-clan.ru, 07/2012)
