
Phlegm
Illness Related
Phlegm usually relates to being unwell, often accompanying a cough or cold.
She felt ill and noticed more phlegm than usual.
Viscosity
It's a thick, sticky substance, unlike the more watery mucus when not sick.
The phlegm was thick and made his throat feel clogged.
Negative Connotation
Discussion of phlegm may be considered unpleasant or impolite in some situations.
Please don’t talk about your phlegm at the dinner table!