"Click it Back"--in online poker, to make a minimum raise or reraise, often to feign strength. The phrase derives from having only to reclick the raise button (set by default to the minimum raise) without having to alter the bet size.
I had QJ HU oop on a 992 flop and fired a c-bet of $50. The nit raised it to $200, but I clicked it back (CiB) and he folded. He probably tossed QQ...typical ABC poker player.