Arthur: So, once we've made the plant, how do we get out? I'm hoping you have something more elegant in mind than shooting me in the head?
Cobb: A kick.
Ariadne: What's a kick?
Eames: This, Ariadne, would be a kick. [kicks Arthur's chair; Arthur flails but manages to right himself]
Cobb: It's that feeling of falling that jolts you awake. It snaps you out of the dream.
Arthur: Are we going to feel a kick with this kind of sedation?
Yusuf: Well, that's the clever part. I customize the sedative to leave inner ear function unimpaired. That way, however deep the sleep, the sleeper still feels falling, or tipping.
I want to understand the sentence starting with That way. This is the meaning provided by The Oxford Dictionary, but it seems totally nonsensical to me. There's no any homosexual context in Inception, I'm a little confused.