Definition of でもしか先生 (でもしかせんせい)
せんせい
                        でもしか先生
でもしかせんせい
demoshikasensei
noun
•
        
someone who became a teacher for lack of anything better to do(slang, derogatory)
Related Kanji
| 先 | before, ahead, previous, future, precedence | 
| 生 | life, genuine, birth |