Partisans in Washington will smirk that these things are optimistic baloney and keep sending their troops off to battle.
On January 20th, Bush will smirk once more, this time in relief that he made it through without having been stopped or caught.
When he turned himself in, he wore a smirk in his mug shot, and then he went out for ice cream with reporters in tow.
Old English smearcian "to smile." No exact cognates in other languages, but probably related to smerian "to laugh at, scorn," from Proto-Germanic *smer-, *smar-, variant of PIE *smei- "to smile;" see smile (v.), which after c.1500 gradually restricted smirk to the unpleasant sense "smile affectedly; grin in a malicious or smug way." In some 18c. glossaries smirk is still simply "to smile." Related: Smirked; smirking. The noun is recorded by 1560s.
1550s, from smirk (v.).