Where does your user name come from?

I've played drums for 39 years, owned drum shops, & still sell drums on ebay. Hence, drum-marty, less one m.

Thu is the name of my niche. She is Vietnamese. Having lived and studied in Japan in the 90 ies I always use the Japanese ending for kids or family members which is chan. Instead of the grown up ending san.

Building rat rod using a 53 Dodge Red Ram Hemi motor...

Well since you asked...
the first part tdat is my first initial T(erry) followed by the first 3 letters of my last name. Now the 7192 is a weird number. A weird number is one that has proper divisors that add up to more than the number, but no subset of proper divisors add up to the number itself.
{The proper divisors of 12 = 1,2,3,4,6. Yet 6+4+3+2+1=16>12 and 6+4+2=12, therefore 12 is not a weird number.} Perhaps a better moniker would have been geek. :)

Its my name, the one I was given by my parents.