HGDT 

HGDT - an abbreviation of saying hello.

To indirectly ask how someone is, without any need to respond.

To let them know you are thinking of them.

Today you are happy it is thursday.

Andrew: Oh hi,

HGDTSB (happy god damn thursday + persons initials)

Sarah: HGDTAB

HGDT by Brady1978 September 23, 2011