ligar
flirt
league
a group joined in a common purpose
+
-ar
verb suffix
Ligar means to flirt and can be thought of as league0 + -ar1. When you flirt, you're trying to join a group0 of two, making it a verb1 action.
verb
  1. flirt
    To flirt or hit on someone
    Juan intenta ligar con la chica nueva del bar. // Juan is trying to flirt with the new girl at the bar.
  2. tie
    To tie or bind
    Necesito ligar estos papeles con una cuerda. // I need to tie these papers with a string.