plural of hen do

Used to indicate that somebody does not wish to be disturbed, e.g. a sign on a hotel room door, or a "busy" mode of an instant messenger.

Indicates that an area should not be entered, e.g. a military installation, or as a sign on a hotel room door.

(euphemistic) To have sex. / Used other than figuratively or idiomatically: to do a given deed.

(obsolete) To take off (clothing). / (slang) To kill, to bump off

present participle of do time

An informal greeting.

(dated, idiomatic, now chiefly India) Absolutely not; definitely no.

(linguistics) The use of the auxiliary verb "do" in negative or interrogative English sentences that do not contain other auxiliaries.

(colloquial, humorous) Used to indicate an unusual or unexpected situation.