To start the operation of
*To take drugs
*To depend on or upon
This can be a huge turn-on for him, and he'll see the verbal fireworks as a sign that the "chase" is on!
The raw emotion was more of a turn-on than he expected.
Consider what kinds of slang is used - not so much to decide if it's offensive, but more to determine if it is going to be a turn-on for your Valentine.
But as artists like Rubens knew, a strong, confident BBW is a big turn-on.
But everyone you meet will think you just exude that poise naturally, and that in itself is a turn-on.