Green’s Dictionary of Slang

throw (it) into v.

1. [late 19C] to tease.

2. [late 19C–1950s] (US, also chuck into, shoot into) to impose upon.

3. [1920s] (US tramp) to talk in slang.

4. [1950s] to assault, to kill.

5. [1970s] (US gay) to sodomize.

6. [2000s] to have sexual intercourse.