Sentence:  Pawpaw contains an enzyme papain which breaks down protein and is said to help clear mucus and excess saliva excretions. Give this <WSD>thickshake</WSD> a try; it is really easy to swallow and tastes wonderful. 
Meaning of the word marked with <WSD> tags:  An imitation milkshake (in locales where "milkshake" refers to the drink specified above), often containing no milk.