Definition: The term "spread eagle" can refer to two main things:
In Skating: You can use "spread eagle" to describe a specific move in figure skating. For example, you might say, "She performed a perfect spread eagle during her routine."
As an Emblem: When talking about national symbols or emblems, you can refer to the "spread eagle" as part of a discussion about the Great Seal. For example, "The Great Seal of the United States features a spread eagle."
"Spread eagle" can also be used metaphorically to describe someone being in a vulnerable or exposed position, as if they are laid out like an eagle with its wings extended.
While "spread eagle" primarily has the two meanings above, in a more informal context, it may also refer to someone lying down flat with their arms and legs extended, resembling the position of an eagle.
There aren’t specific idioms or phrasal verbs that directly incorporate "spread eagle," but you can create phrases using "spread" and "eagle" in a metaphorical sense, such as "spread wide open," which suggests openness or vulnerability.