hot and cold

hot and cold

1. Of one's body, both hot and cold at once, as from shock or illness. After the pneumonia took hold, she was hot and cold all night.
2. Alternating between two opposite states, especially being enthusiastic or interested one moment and disinterested the next. He was hot and cold throughout our entire date, so I have no idea if he wants to see me again.
See also: and, cold, hot

hot and cold

BRITISH
If someone or something makes you feel hot and cold, they make you feel extremely worried or nervous, and this causes you to feel as if your body is both hot and cold at the same time. When she realized what she was reading she grew hot and cold all over.
See also: and, cold, hot
References in classic literature ?
I will have nought to do with a man who can blow hot and cold with the same breath.
It prevents the mixing of hot and cold air, which is the key to efficiency, by allowing higher work environment temperatures.
The global Hot and Cold Therapy Packs Market study provides a comprehensive view of the ongoing and future phases of the Hot and Cold Therapy Packs industry based on parameters such as major commercial events, research initiatives, government guidelines, market drivers, restraints and opportunities and detailed industry segmentation and regional distribution.
NEW YORK -- Mass market retailers sold nearly $236 million worth of hot and cold packs in the 52 weeks ended July 13, according to IRI.
Carex Health Brands has acquired the ThermiPaq hot and cold therapy product line from Thermionics Corp.
In the new system, atoms of different energies collide but don't share energy in the usual way that, for example, equal amounts of hot and cold liquids make a lukewarm mix, notes David S.
Most system, rack- and room-level cooling issues are created due to insufficient airflow or inadvertent mixing of hot and cold air.
Heat transfer between the hot and cold halves is reduced by an insulating plate in the stationary half.
The pressure-balancing valve (Type P) is designed to adjust water temperature automatically by maintaining a mix of hot and cold water to within 3[degrees]F of the set point when pressure changes occur in the system.
These designs don't heat as well, and may result in hot and cold spots on the cooking surface.
If the mold is designed with a cold runner system, an exact separation between the hot and cold sides is imperative.
To reduce the risks of food-borne illness, keep hot foods hot and cold foods cold.
Residents in cold cities suffered higher CVD death rates during both hot and cold periods.
That's a vacuum flask, it keeps hot things hot and cold things cold," he's told.