An anagram short for, "Little Irish Dick Syndrome". Common in most post-pubescent Irish Males. It has been estimated that nearly 94% of all Irish Males suffers from L.I.D.S. in a case study conducted by Massachusetts Institute of Technology (Rowe, et al, 1997). Famous L.I.D.S. patients include Tom Cruise, Bob Saget, Hilary Clinton, and Ron Weasley.
Girl 1: "I sure feel bad for Stephanie"
Girl 2: "Why is that?"
Girl 1: "Her boyfriend has just been diagnosed with a terminal case of L.I.D.S."
Girl 2: "Looks like her vibrator is going to be doing a lot of work in the future"
Girl 2: "Why is that?"
Girl 1: "Her boyfriend has just been diagnosed with a terminal case of L.I.D.S."
Girl 2: "Looks like her vibrator is going to be doing a lot of work in the future"
by jbhunter March 17, 2011
by Bobby Bushey water boy December 4, 2008
by Shandy1 June 11, 2015