LGSD 

Little Girls who Suck Dick.

You see a bunch of hot freshman girls and you say "dam all these LGSD's"

LGSD by Red Carlito March 1, 2005

LGSD 

When a man sees a woman breastfeeding her baby and he knocks the baby out of the way so he can suckle that fine breast milk for himself.

Dude i gave a hot chick in the park an LGSD and I stepped on her baby after I had drank my fill

LGSD by GZILLA April 5, 2007