clip on

clip on(to) (someone or something)

To attach something to someone or something else using a clip. A noun or pronoun can be used between "clip" and "on." Clip on your ID badge before you leave so that you can get back into the building. I clipped the doctor's note onto the rest of my paperwork.
See also: clip

clip-on

1. noun An earring that clips onto the earlobe, as opposed to being inserted through a piercing. Jen never got her ears pierced, so we're going to need to find her some nice clip-ons for her wedding day.
2. noun A necktie that clips onto the collar, as opposed to being tied. When I was a kid, I used to wear a clip-on before I knew how to tie a tie.
Farlex Dictionary of Idioms.

clip something on(to) someone or something

 and clip something on
to attach something to someone or something with a clip. I clipped a little name tag onto him before I put him on the plane. I clipped on a name tag.
See also: clip, on
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • clip on(to) (someone or something)
  • clip out
  • clipping
  • clip (something) from (something)
  • clip from
  • pin back
  • (someone or something) promises well
  • (I) wouldn't (do something) if I were you
  • (have) got something going (with someone)
  • a straw will show which way the wind blows