Regarding the unsure translation, I think it's related to ゆるい meaning "loose" and きつい meaning "tight", I'm not quite sure about the まん after both names though.
Ehehe...
I'm Yurumann~
unsure translation, never seen that name showing up in Takagi-related post anywhere beforeI... I... I'm Kitsumann~
unsure translation, never seen that name showing up in Takagi-related post anywhere before