Definition of 後出し (あとだし)
あとだ
                        後出し
あとだし
atodashi
noun
•
        
waiting to see one's opponent's move before doing anything (e.g. as a disallowed act in rock, paper, scissors)
Related Kanji
| 後 | behind, back, later | 
| 出 | exit, leave, go out, come out, put out, protrude |