I don't know if the term is international. A roast is normally a formal dinner with a head table. The honoree is seated next to the speakers lecturn and has to endure as speaker after speaker takes the pee out of him/her.
We can do a similar thing here for special occassions such as birthdays or just because we want to
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)