This is the 15239th most frequent Russian word.
порожняк
"Порожняк" refers to "empty cargo" or "something insignificant, empty talk."
In this sentence, 'порожняк' refers to idle talk or meaningless conversation.
Не нужно говорить впустую и гнать порожняк.
You shouldn't speak aimlessly and talk nonsense.
In this sentence, 'порожняк' means 'empty,' particularly referring to the lack of cargo in a transport vehicle.
Этот грузовик едет в Москву налегке, одним порожняком.
This truck is heading to Moscow empty, carrying no cargo.
In this sentence, 'порожняк' indicates an empty or vacated mining area.