pinchar
prick
pinch
to squeeze between finger and thumb
+
-ar
verb suffix
Pinchar means to prick and can be thought of as pinch0 (to squeeze between finger and thumb0) + -ar1 (verb suffix1), referring to a similar sharp sensation.
verb
  1. prick
    To prick or puncture
    Ten cuidado de no pinchar el globo. // Be careful not to prick the balloon.
  2. click
    To click (in computing)
    Pincha el icono para abrir la aplicación. // Click the icon to open the application.