Definition of 腕白坊主 (わんぱくぼうず)
わんぱくぼうず
                        腕白坊主
わんぱくぼうず
wanpakubouzu
noun
•
        
naughty boy, mischievous boy, little rascal, brat(yojijukugo)
Related Kanji
| 腕 | arm, ability, talent | 
| 白 | white | 
| 坊 | boy, priest's residence, priest | 
| 主 | lord, chief, master, main thing, principal |