This refers to one's scrotum.
"yo bitch lick my happy sack"
"my happy sack is behr hairy"
by deadhill pimp April 16, 2006
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The little skin sporran that a male keeps his knackers safely locked up in.
"Oh Christ ... I've just been kicked in the happy sack ... I'll never have kids!"
by Wizards Sleeve June 07, 2005
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Breast implants. After breast cancer, breast reconstruction gives a woman back her shape and confidence. Using saline or silicon, acquiring implants is a good thing! Slang for natural breasts are so affectionate; too bad so many slang terms for implants are negative.
"I got silicone happy sacks, and I feel curvy again."
by Curvy Cancer Survivor December 30, 2009
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re-useable sandwich and snack bags now called snackTAXI
Happy sacks (now snackTAXI)like a ziplock bags but better for the environment
by KMurray February 23, 2009
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