THE ALPHABET GAME: 'T'

Hello participants of The Daily Vitamin Alphabet Game! Today we are on the letter "T" of our contest. How are you doing so far? 

Here is today's sentence. 

Sentence: I quit smoking cigarettes cold t_____ three years ago. I haven't smoked since. 

These hints might help you to figure out the answer. 

Clue 1: It is an expression. 

Clue 2: It means "to quit a bad habit immediately and never do it again."

Clue 3: The missing word is also the name of an animal. 

What do you think? Do you know the answer? Give us your guess on our Facebook, Twitter, or LinkedIn pages. We will post the correct answer later. 

Thanks for playing!