Also found in: Acronyms.
An initialism for "from the bottom of my heart," meaning truly or sincerely. Thank you to everyone who has supported our project, I truly mean that. FTBOMH. I love him from the bottom of my heart, but that doesn't mean I'm blind to his faults.
from the bottom of my heartand FTBOMH
phr. & comp. abb. very sincerely. Thanks FTBOMH.