Tiss-kwan-tum
Here's a breakdown:
* Tiss: The "T" is pronounced like the "T" in "tip". The "iss" sounds like the "iss" in "kiss".
* kwan: The "kw" sounds like the "qu" in "queen". The "an" sounds like the "an" in "fan".
* tum: The "tum" sounds like the "tum" in "drum".
It's important to note that the "T" sound at the beginning is often softened, making it sound more like a "ch" sound.