Terry

A Terry (also known as Tezza or Terry the Tactil) is the noise you make when you do that weird little singular hiccupy/burp that takes you (and everyone else around you by surprise).

The name Terry comes from the sound being likened to that of a Pterodactyl.

*Someone in the office does the weird hiccupy/burp*
Colleague - "Ooop there's Terry!"