i Register
In some senses, spread-eagle is marked as colloquial, humorous. Watch for register when choosing this word.
adj
Lying with arms and legs outstretched and separated.
Characterized by a pretentious, boastful, exaggerated style; bombastic.
a spread-eagle orator
a spread-eagle speech
verb
To put into a spread-eagle position, with arms and legs extended and spread.
To put one's body in a spread eagle.