One of Chilangos' naughtiest passtimes are tallarines (tah-ja-DEE-ness, lit. noodles), which stands for rubbing one's body against the body of a women while pretending to be oblivious. Tallarines comes from tallar (lit. to rub), and it is used in the form dar tallarines (lit. to give noodles).
Unfortunately for women tallarines are not uncommon in public transportation and mass concentrations, such as concerts.
Travel advice: despite the fact that Chilangos hardly pass up an opportunity to dar tallarines, females are most emphatically encouraged to slap the agressor on the face and denounce him.