what does "tank"mean? what kind of clothes is it? With a laugh, she spun into him, took his mouth again as she flipped open buttons on his shirt. “No reason not to get started on the way.” “That’s a point.” She wore a soft blue pullover, or did until he yanked it up and off, tossed it behind them as they arrowed toward the stairs. She pulled at his belt; he dragged at the skinny white tank she wore under the pullover. And both of them tripped on the base of the stairs. They teetered, groped.