2. When somebody rocks up at a party or miscellaneous social gathering uninvited.
3. When somebody begins to flirt with every attractive female in sight, regardless of relationship status of both himself and the girl.
2. Oi! Why the hell is he here? Oh, he pulled a hiley again...
3. You know, if he keeps pulling a hiley any longer, her boyfriend is going to bash the living crap out of him!