mouthful
🇺🇸
/ˈmaʊθfʊl/
🇬🇧
/ˈmaʊθfʊl/
the amount of food or drink you put in your mouth at one time
She took a big mouthful of water after running.
a word or phrase that is long and hard to say
The chemical name was a real mouthful to pronounce.