Slang term used to describe an older slang term of being "square" which was often used to indicate akwardness or someone who is completely odd. If you put the letter "L" and the number "7" close enough together, the two characters create a shape resembling a square.
I got lost in the city and ended up in an unfamiliar neighborhood where I felt completely like an L 7.
L 7 was used in the 50's/60's to represent being "square" or old-fashioned or un-cool. (People would hold up their thumbs and forefingers to create a square shape as a non-verbal representation.)
In the song "Woolly Bully" one of the lines is "Let's not be L 7, come and learn to dance.
another term for a station wagon, mini-van, or any other kind of vehicle that is targeted at the "family" demographic(also M.A.V.)
"Tactical advantages aside, the M.A.V. is top of the line for the holy warrior troop transport manufactured by the Church of Latter Day Saints Military Industrial Complex. Also great for family trips...to heathen lands."
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.