/tʃʌk/
[verb] To throw something in a casual or careless way, or to give up or get rid of something. It can also be used as a term of affection, like calling someone 'dear' or 'love'.
The affectionate 'chuck' and the 'throw it away' chuck are two completely different words that secretly merged into one.
The story of 'chuck' is actually the story of two or three different words that collided over the centuries and blurred into one familiar shape. The most common modern sense — to throw something casually — likely developed from a variant of 'chock', meaning to toss or pitch, which itself grew from Old French 'choquer', meaning to strike or knock. This Old French verb entered English in the 16th century, and over time its rough, percussive energy made it a natural word for the careless, underhanded toss of an object across a room.
The affectionate use of 'chuck' — as in calling someone 'my chuck' or 'chuck' as a term of endearment — has a quite different and older lineage. This sense comes from Middle English 'chuk' or 'chikke', which was simply a variant of 'chick', the baby bird. Just as English speakers today might call a loved one 'sweetheart' or 'dove', speakers in the medieval period reached for the image of a small, soft chick to express fondness. Shakespeare used 'chuck' this way in Macbeth, when Macbeth addresses his wife: 'Be innocent of the knowledge, dearest chuck.' The word carried warmth and intimacy, and it still survives in northern English and Scottish dialects as a gentle term of address.
The mechanical sense of 'chuck' — the clamping device on a drill or lathe that holds a bit in place — arrived separately in the 17th century, most likely from the same Old French root 'choquer', since the device grips and holds by a kind of forceful contact. The word was used in workshops and by craftsmen and eventually became standard engineering vocabulary. This sense is now the dominant one in technical contexts, even though most people who use a drill never pause to wonder why that gripping metal collar shares a name with throwing a ball.
In the 19th century, 'chuck' also became slang for food, particularly in American and Australian English. 'Chuck wagon' — the mobile kitchen that followed cowboys on cattle drives — took this sense and embedded it deeply in the mythology of the American West. The origin here is less certain; some trace it to 'chuck' as a cut of beef (from the shoulder of the animal), which may itself relate to the Old French 'choquer' through the idea of a solid, struck block of meat. Others suggest a more direct borrowing from regional British dialect. Whatever its precise route, by the time cowboys were driving longhorns across Texas, 'chuck' meant food in a plain, practical, no-nonsense way that matched the life perfectly.
What makes 'chuck' so interesting is how a single short syllable — blunt, percussive, instantly satisfying to say — attracted multiple unrelated meanings to itself, like a linguistic magnet. The throwing sense, the affectionate sense, the mechanical sense, and the food sense all arrived by separate roads and settled comfortably under the same roof. Today when someone says 'just chuck it in the bin' or 'chuck us a biscuit', they are using a word whose simplicity hides centuries of tangled, overlapping histories — a word that sounds exactly like what it means in almost every one of its guises.