The phrase "aggressive smile" is correct and usable in written English.
It can be used to describe a smile that conveys hostility or assertiveness, often in a context where the smile contrasts with the underlying aggression.
Example: "She greeted him with an aggressive smile, making it clear that she was not to be underestimated."
Alternatives: "hostile grin" or "menacing smile".
And the comely couple who greeted the audience in the lobby of the Bush Theater were a sunny pair, with neon-bright clothes and aggressive smiles.
Based around two best friends living in New York, Srsly is Girls if it was just Shoshanna and Marnie – lots of passive-aggressive smiles and shrieks of "Amazing!" It simultaneously makes fun of and celebrates the weird bits of female friendship, like pretending to enjoy group yoga.
He does not look aggressive, he is smiling".
Williams came out aggressive on defense, smiling as if Saturday's loss to the Clippers were a distant memory.
There was plenty to focus on during Wednesday night's presidential debate, from Mitt Romney's aggressive demeanor and sly smile to President Obama's downward gaze and sighs of annoyance.
"I don't think he will be in trouble, he was not aggressive and he was smiling," said Wenger after the win.
But the women were branded as aggressive — unless they gave a smile while they asked, or appeared warm and friendly.
Just 35 minutes of news-conference-style announcements later, Mary Hart of "Entertainment Tonight" — a brittle smile floating above aggressive décolletage — brought Mr. Camara back onstage to announce that "Atonement" had won best motion-picture drama and the show was over.
(During the match the Catalan had not been quite so calm, with the fourth official Bibiana Steinhaus bearing the brunt of his anger) While the subsequent attempt to paint Gladbach as genuine title contenders seemed a little forced – "We accept our position," the coach, Lucien Favre, replied with a smile after some aggressive questioning – the game did feel as if it had wider significance.
Add in that his hands are at fuck o'clock, his smile is genuinely aggressive and the fact that he sincerely gives off the vibe that he does something chaotically wrong when he pisses – rides the toilet back-to-front, does a handstand before, during and after, takes off all of his clothes to pee, something like that – and we've got a hell of a Trump happening here.
You may think you are putting on a friendly face with a big toothy smile, but an aggressive dog sees you baring your teeth for a fight.
