The correct lyric is "Mainline outta China is due in tonight," not "Last night outta China is due in tonight," which also doesn't make any sense. It's a reference to the Kiss song "Mainline" sung by Peter Criss, similar to other Criss-sung song references throughout the song, like "Getaway" and "Waitin' for the darkness to blind the heat, I make my livin' out on the streets" allusion to "Black Diamond."
The correct lyric is "Mainline outta China is due in tonight," not "Last night outta China is due in tonight," which also doesn't make any sense. It's a reference to the Kiss song "Mainline" sung by Peter Criss, similar to other Criss-sung song references throughout the song, like "Getaway" and "Waitin' for the darkness to blind the heat, I make my livin' out on the streets" allusion to "Black Diamond."