I think his books reveal that everything about Mailer is doubled.
Large parts of CIA doubled in size and then spawned private-sector, for-profit replicas.
By picking Paul Ryan as his running mate, Mitt Romney has doubled down on a public-relations strategy of phony deficit reduction.
In August, Apple doubled down, launching another massive lawsuit targeting 17 Samsung phones and tablets.
She doubled down on her opposition to raising the debt ceiling, and failed to point to a real record.
During the year the membership of the association more than doubled.
Stffi doubled up his fist, and Sami understood what that meant.
The final consonant in track is not doubled because track ends with two consonants.
Dick had felt that the danger to their pursuers had more than doubled.
Only who can tell how a ghost, with his doubled experience, may think of this thing or that?
late 13c., "make double," from Old French dobler, from Latin duplare, from duplus (see double (adj.)). Meaning "to work as, in addition to one's regular job" is c.1920, circus slang, from performers who also played in the band. Related: Doubled; doubling. To double up bodily is from 1814.
A blow on the stomach "doubles up" the boxer, and occasions that gasping and crowing which sufficiently indicate the cause of the injury .... [Donald Walker, "Defensive Exercises," 1840]
mid-14c., "amount twice as great," also "duplicate copy," from double (adj.).