similar to "tall, dark, and handsome", if you are a tall glass of water, you are a tall guy who is a good catch, i.e. a goodlooking bachelor
Girl: Wow, would ya check him out? His deep voice is so sexxxyyyyy, and he plays tennis, AND he loves kids! Now that's a tall glass of water if I ever saw one!
A particularly tall female (about 5'10 or taller). Who is very attractive.
Dannnggg girl u most def
a Tall Glass of water.... wanna quench my thirst lol.
A tall, COOL, glass of water is a babe so hot you need a glass of water after checking her out.
Well, she's a tall, cool glass of water ain't she?
The architect of my dreams. A pretty little boy, sitting up there in your high chair, demanding more applesauce. A sexy little rattlesnake. A naughty little baby boy. A rambunctious little infant.
"You're a tall glass of water, aren't you, Spencer..."
Something fresh and nice to see; new or inventive
"This new Urban Dictionary thing sure is a tall glass of water."
Some one you would consider a boner, tool or a duesche bag (for lack of more descriptive words), who is also a push-over. Someone that means absolutely nothing to you.
Oh, look at this tall glass of water!
And you think this tall glass of water is going to stop us?
tall, uninteresting person. usually male.
'who's that tall glass o' water over in the corner?'