voluntell
To tell or force (someone) to "volunteer" to do something.
informal, transitive
I just found out that I was "voluntold" [Marine-speak for a combination of volunteered and told—F[rank] S[chaeffer]] to stay back for a working party.
Where it comes from
Blend of volunteer + tell, in the sense of "to order (someone to do something)."
Adapted from the Wiktionary entry voluntell (CC BY-SA 4.0).