Play word 食込む 食込む くいこむ to be wedged (i.e. underwear pulled from the back, driving it between the buttocks)
Play word 追いこみ 追いこみ おいこみ forcing another player to fold (so that oneself can participate in the game)
Play word 聞込み 聞込み ききこみ getting information (esp. by interviewing witnesses, etc. in a police investigation)