自作自演(じさくじえん)performing a part in one's own play, playing a musical piece that one has written, doing everything by oneself (from preparation to execution), put-up job, charade, sock-puppeting (i.e. pretending to be more than one person on the Internet)

Noun, する-verb

1. 1.

   performing a part in one's own play, playing a musical piece that one has written

   Yojijukugo

2. 2.

   doing everything by oneself (from preparation to execution)

   Yojijukugo

3. 3.

   put-up job, charade

   Yojijukugo

4. 4.

   sock-puppeting (i.e. pretending to be more than one person on the Internet)

   Colloquial, Yojijukugo