Pull-in as a noun is a rest stop; a place at the side of a road where drivers can rest. while Pull-up as a noun is an exercise done for strengthening the arms and back, in which one lifts one's own weight while hanging from a bar.
Part of speech: noun
Definition: A rest stop; a place at the side of a road where drivers can rest.
Part of speech: noun
Definition: An exercise done for strengthening the arms and back, in which one lifts one's own weight while hanging from a bar.
We hope you now know whether to use Pull-in or Pull-up in your sentence.