slap in
To insert someone or something into something or some place, especially very quickly, casually, or suddenly. A noun or pronoun can be used between "slap" and "in." You'll need to slap in a new battery to get it working again. The policeman slapped the man in handcuffs and led him away from the scene of the crime. I slapped the CD in and threw myself down on the bed to listen to it.
slap someone in something
Fig. Inf. to put or throw someone in jail or prison. The sheriff slapped the crooks in jail. Do you want me to slap you in jail?