burn up

phr.v. to be completely destroyed by fire or heat.

phr.v. to be entirely consumed or destroyed by combustion or extreme heat.

“Small pieces of space rock usually burn up when they enter Earth's atmosphere.”

“The satellite was designed to burn up upon re-entry to prevent large debris from reaching the planet's surface.”

phr.v. to use or consume energy, calories, or fuel.

phr.v. to expend or consume energy, calories, or fuel through physical activity or mechanical operation.

“Running for thirty minutes helps you burn up a lot of calories.”

“High-intensity interval training is an efficient way to burn up stored glycogen during a short workout session.”

phr.v. to feel very annoyed or angry about something.

phr.v. to experience or cause a feeling of intense annoyance or indignation.

“It really burns me up when people are rude to waiters.”

“The blatant injustice of the situation continued to burn him up long after the meeting had concluded.”

Informal

phr.v. to have a very high body temperature because you are sick.

phr.v. to experience a high fever or significant physical inflammation.

“The child was burning up, so his mother called the doctor immediately.”

“By midnight, the patient was burning up with a fever that refused to break despite the medication.”

Informal