Sore throats are a pain in the neck!
Why this joke works
A Pain Located in the Neck
A sore throat can cause discomfort in the neck area, making it literally a pain in the neck. The same phrase describes an irritating person, task, or inconvenience. The exclamation sounds like a complaint about being sick while also classifying the illness as annoying. This is direct idiom literalization: the physical symptom occupies the body part named by a familiar figurative expression.
A closer look
One Sentence Sounds Like a Familiar Complaint
The joke skips a setup and presents itself as an everyday grumble. That directness lets the exclamation mark add a little frustration without suggesting a serious medical discussion. “Sore throats” begins with a concrete symptom, while the familiar complaint at the end broadens it into a general nuisance. The compact construction makes the physical location and emotional reaction arrive together.
Fact behind the joke
The Throat Carries Both Air and Food
MedlinePlus explains that the throat, technically called the pharynx, is a tube carrying food toward the esophagus and air toward the windpipe and voice box. Colds and flu commonly cause soreness, though allergies, tonsillitis, and other conditions can also be responsible. The body part in this joke is therefore a busy passage rather than a single-purpose tube.