LDS is an a acronym for "Long Distance Shot". Long Distance Shots occur when two people or two groups of people who don't live in the same location contact each other over the phone or some form of web chat, like Skype, to have a drink a shot together.
Kyle: Nova, where the fuck were you?? I was trying to get a hold of you all night! We were celebrating at aunt Sylvie's and thought of you and tried calling so we could take an LDS together!!
Limp Dick Smack, usually a practice performed after sex when the male has just gotten back from throwing away the condom. The preferred location would be on the cheek or right across the forehead. It is very similar to the post-game slap on the ass in football.
Dude she totally rocked my world so when I walked back in I had to give her the ole L.D.S. out of sheer respect.