High-Definition. Digital TV using the MPEG-2 compression with a resolution of 720 or 1080 lines, interlaced (i) or progressive (p). Also has a wider aspect ratio (1:78:1 or 16:9) than regular TV (1:33:1 or 4:3), and 5.1 channel Dolby Digital AC-3 surround sound.
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Abbrevation for Hit Die/Hit Dice used in the Dungeons & Dragons role-playing game.
"You cause 4 + 1d4 HD of creatures to fall into a comatose slumber, beginning with those with the fewest HD. Creatures with 5 or more HD are unaffected."
(Quote from the description of the Sleep spell in the Dungeons & Dragons based computer game Neverwinter Nights 2.)
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"hd" is a verb that describes when a person is sexually aroused. Being "hd" originated from the word "horndog" and was later used as a substitute for the words horny or being turned on.
Boy: "I want to grab your neck from behind, suck it with little nibbles of bites to get you moaning my name. I want to spread my wet kisses all over your tights and make you drag my head such that I am kissing your pussy all over. I want you to moan in ecstasy as I try the crazy new things I have learned!"
Girl: "Holy shit! You just made me so hd!"
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Nickname for Horny Douche. Usually given to someone who's a bastard and is incredibly stupid. A pervert and only dates to get action. Never MEET one let alone date one.
Girl 1: dude you guys should totally go out
Girl 2: EWWW, He's a HD
Guy 1: No i'm not. *pokes girl 2 in chest*
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when everything looks like its in "High Definition" when your really baked!!
when your sitting there getting really high and BAM everythings in HD! lol...
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Of good quality, to be of a high standard
"That was HD, lad"
"Had an HD night last night"
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"Marrisa, look at this picture he sent me!"
"OMG! He has a HD!"
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