To give up 3 late scores in record time and lose in the final game of a series.
The Toronto Maple Leafs were beating the Boston Bruins 4 to 1 in game 7 of a best of seven series and allowed Boston to score 3 goals in the last 10:42 of regulation and to then win it in overtime. It is the first time in history that a team has lost a game 7 after having a 3 goal lead so late in the third period. Leafing is the process of losing a game when all historic indicators point to a sure victory
by Paul Paiment June 13, 2013
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roll us up some of that leaf. Pretty soon we'll be down to seeds and stems again.
by Anonymous November 8, 2002
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1. A usually green, flattened, lateral structure attached to a stem and functioning as a principal organ of photosynthesis and transpiration in most plants.

2. A leaflike organ or structure.

3. A hinged or removable section for a table top.

4. A person who enjoys butt secks.

5. Beloved counterpart to Branch.

6. A person who possesses extraordinary graceful and lithe characteristics.

7. A girl who is forced to cook dinner every night for her family.
Random Person 1: Oh my God, seriously, Leaf should have her own cooking show!

Random Person 2: Wtf? There's bloodclots in her porkchops.
by Branch June 7, 2006
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In honor of Ryan leaf, I'm gonna take these hydros, perks, and Oxys and get leafed
by bsquad January 28, 2015
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Leaf: “If you’re vegetarian and not vegan you clearly don’t care about Mother Earth, may her soul be eternal!”
by TreeHugger Environmentalist August 3, 2018
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a person who choose the teams he's a fans of by the prevailing wind of who most likely to win the next championship. these fans are mostly in the NFC, Hence one year their a forty niner, the next a cowboy then green bay and so on and so
Boy Andre was a Pats fan last year now he's crowing about the saints.
yep he is nothing but a leaf!
by DARTH STEELER November 21, 2013
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When the Toronto Maple Leafs give up a lead during regulation play, or really at any time.
The Leafs have been leafing their last 5 games, by blowing their 3-0 lead during the last period and losing in overtime.
by nurse21 January 9, 2018
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