He's renaming his threads that are dealing with his GLBSE assets to single letters, like P stands for TYGGR-BOND-P, A for TYGGR-BOND-A etc...
How do you spell Tigger? "T" "Y" "Double Guh" "er"
Either you're showing your age, or Mommy learnt you a new song:
https://www.youtube.com/watch?v=esuVxk_gqX0Full Disclosure: This is the song that immediately came to mind upon reading your post. Hunted down a video I've never seen before. Hope you all enjoy.
~Bruno K~
PS: Geo's assessment seems logical.