Question

Jump Off the Deep End to act emotionally without carefully thinking about the end result; to become deeply involved before you're ready to

Accepted Answer

Ed and Esther just met, but they're getting married. They're jumping off the deep end. People should not jump into the deep end of a swimming pool if they are not 100 percent sure that they can swim. It's better to start in the shallow end and swim to the deeper side. (See "get your feet wet, page 76.) But if people follow their emotions without much thought, they could be in deep water and in over their heads. Since the early 1900s "jump off the deep end" has also meant going into a rage or having a mental breakdown.

Idiom	Jump Off the Deep End
Example	Ed and Esther just met, but they're getting married. They're jumping off the deep end.
Meaning	to act emotionally without carefully thinking about the end result; to become deeply involved before you're ready to
Origin	People should not jump into the deep end of a swimming pool if they are not 100 percent sure that they can swim. It's better to start in the shallow end and swim to the deeper side. (See "get your feet wet, page 76.) But if people follow their emotions without much thought, they could be in deep water and in over their heads. Since the early 1900s "jump off the deep end" has also meant going into a rage or having a mental breakdown.

Deep End Jump People Ed Esther Met Married