be at the bottom of

Meaning

1. be / lie at the bottom of sth

   to be the original cause of sth, especially sth unpleasant

In the movies · 4

• It will lie at the bottom of the ocean as if wounded.Gladiator2000
• At the bottom of this elevator there is a coat-check girl.The Matrix Revolutions2003
• which lies at the bottom of the lake:"The Mighty1998
• He may be at the bottom of the lake,Terminator Genisys2015
• monstrous things should be at the bottom of the river,Spider-Man 22004
• After that, it'll be at the bottom of a lake.O Brother, Where Art Thou?2000
• We'd be at the bottom of the food chain up there, but down here...Alita: Battle Angel2019
• There, on the bottom.You're Not You2014

From the same entry

• at bottom
• the bottom drops out
• bottoms up
• get to the bottom of
• at the top of the heap
• from the heart
• bottom of the pile
• race to the bottom
• scrape the barrel
• from top to bottom
• touch bottom
• you can bet your life bottom dollar …)