What is Ninjad?
1.
To stealthy steal something from a person your having a conversation with where by they do not realise youv taken it untill much later.
Bob: wtf? wheres my cellphone?
Jason: What this one?
Bob: dammit how?
Jason: i ninjad that about 10 minutes ago
See
2.
to steal or take unnoticed by another
Dave Ninjad from Sue a drink of her coffee when she was looking the other way
See