I suspect that the writer is trying to be creative, and turning an adjective into a verb. But, for me, the attempt fails, because the dialog comes across inarticulate and blunt and confusing. If you replace "under controlling you" with "make you under control" (or "cause you to be under control") then I believe that that's what the writer means. Btw, I can't find your source using a web search. Did you copy out all the words correctly? Is that exactly what was said? Can you send a link to the source? Here's some more info that might help: If someone wrote "under-controlling" (note the hyphen), then I'd be most likely to interpret that as meaning "failing to control (to a sufficient degree)". Similarly, "under-steering" means "failing to steering enough (to successfully negotiate a corner)". But the writer omits the hyphen, and even if they'd included it, the dialog would still make no logical sense to me. To be "under control" means to be "in control". That is, your level of control is sufficient. If you "lose control of your airplane" then the airplane is no longer "under your control" or just "under control". "Do you have your airplane under control?" "No". But that's not what the writer said. However if you take the adjective "under control" and apply it to a person in the sense that you're causing the person to be "under control", then you might say "I want to make you under control" (or "I want to cause you to be under control"). Turning the adjective into a verb "to under control someone" then you get "I want to under control you". However, that's really tortured thinking, and really tortured language, and the result is unpleasant. Adding a hyphen risks confusing the result with "under-controlling" as described above. Putting "under control" in quotes or italics might help, as in "Do I have any chance of "under control"-ing you?". Doing that reveals that the double "l" in the original is an error.

I've never heard of "under-controlling". Often words which start with "under-" have the meaning of "insufficient" e.g. underpay = not pay enough, understate = state subtly

I'd say it's just wordplay. B is saying that instead of saying, "do I have any chance of having you under control?" I looked up "under controlling" and it's not in any of the dictionaries that I frequent.

I am a native English speaker and I have never seen or heard of "under controlling". Is this graphic novel written in the United States?