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Stands for: "Laughing So Hard My Organs Are Bleeding".
Usually used in online conversation to clearly show just how funny you thought something is.it can also be combined with 'rolfmao' by creating 'roflmaoshmoab'.
Superman709:why did the chicken cross the road?
Bob009:dunno. why?
Superman709: to get to the other side!
Bob009:LSHMOAB!!!
Lshmoab by misterstevens January 29, 2007
Related Words

LSD Trip 

A LSD Trip is when you take LSD and 'trip'. When somebody says they are tripping, this means that they're hallucinating. If it's a good trip, the person will spend most of his/her time watching colors fly around them while laughing or looking amazed. If it's a bad trip, the person could be filled with fear and anxiety. It's amazing how a trip can go from good, to bad, and even back to good very suddenly.
Guy 1: Dude, that was a crazy LSD trip we went on last night
Guy 2: Hell yeah, after it hit me, I don't even remember moving from my bed until after it finished peaking.

Guy 1: Hell yeah, we should go on a shroom trip next time.
LSD Trip by tnt_blowitup March 23, 2011
Looking Slack-Jawed At My Monitor. Incredulity at what one is seeing or reading on the Internet.
As a statement:
I was on 4chan and I was all LSJAMM.

As a response:
Biff: I just had sex with my mother.
Barb: LSJAMM

About someone else:
That Russian kid seeing porn for the first time was totally LSJAMM.

In Meatspace:
Guy #1: Dude, check the hottie.
Guy #2: El-es-jam for sure
LSJAMM by BRB-123 January 21, 2011
1) where people are known to stand in the library and generally chat about how many books they've read.

2) hopelessly formal and either overtly conservative or conservative (but hidden) place where people who rule the world reside
Person in library #1: oh, i've just come back from hong kong

Person in library #2: ohh, i just came back from singapore

Person in library #3: ohhh, i just came back from hong kong - been round the Malay peninsula but then flew to New York for fun but had to write my essay on the plane back
LSE by Synesthesia September 13, 2005
Last Second Piss. Just before leaving the house each day, the need to urinate one last time, just to be sure.
Rick: Hurry up! We're gonna be late for the movie - it starts in 3 minutes!!
Ned: Hang on! Just gotta do an LSP!!
LSP by steveinakld July 31, 2012