be/lie at the bottom of
phrase
chiefly British
: to be the source or originator of (something)
I think I know who's at the bottom of these pranks.
Cite this Entry
“Be/lie at the bottom of.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/be%2Flie%20at%20the%20bottom%20of. Accessed 13 Mar. 2026.
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