a person (typically male) who is skilled in masturbating without being noticed by those around him. term coined from SRK
The jack ninja was so stealthy, he managed to get his business all over that girl's back without her noticing.
by cynik February 16, 2004
The ninja jack. The act of jacking off silently (quickly in most cases) and without those around you knowing that you had even done so.
Usually refers to jacking off while someone is talking on the phone (I.e. a girlfriend calls and you rub one out while she talks about something random).
Usually refers to jacking off while someone is talking on the phone (I.e. a girlfriend calls and you rub one out while she talks about something random).
Girl: "Hey, so anyways my day blah blah blah"
Guy: "yup, sounds good"
Guy::touching himself/finishes::
Girl: "So- what do you think?"
Guy: "Sounds like a plan. We meet at your parents house for dinner tomorrow night"
Ninja jack successful.
Girl: "What's wrong- you sound winded"
Almost.
Guy: "yup, sounds good"
Guy::touching himself/finishes::
Girl: "So- what do you think?"
Guy: "Sounds like a plan. We meet at your parents house for dinner tomorrow night"
Ninja jack successful.
Girl: "What's wrong- you sound winded"
Almost.
by The Noob Tuber April 2, 2010