Dutch

  • vastklikken en losklikken
  • losklikken en vastklikken

English

  • snapped on and off, snap on and off
  • clipped in and out
  • clip and unclip[1]
  • lock and unlock
  • click and release
  • click and unclick[2]
  • secure and release
  • fasten and unfasten
  • click in and out
See also: vast- en losgeklikt, los- en vastgeklikt 
=
• attached and detached
• clicked in and out
• fastened and unfastened
• locked and unlocked
• secured and released
• snapped on and off 

References

  1. unclip: Release from being fastened or held with a clip: Of course I am going to put my seatbelt on when I drive, it is second nature, but I unclip it to reverse up my tricky driveway.
  2. unclick: Release or unfasten (something) with a clicking sound: I put my hand down to unclick my seatbelt but realized I forgot to buckle it in the first place