A snootful is a lot of something, especially when talking about drinking alcohol.
The word snootful can make people think of having too much to drink or feeling a little silly.
Examples:
He had a snootful of beer at the party.
She drank a snootful of juice.
The man got a snootful of water.
I had a snootful of soda and now I'm all fizzy!
The elephant drank a snootful of water from the river.
I had a snootful of lemonade and now I feel funny.