- Sinseriously
- To be earnestly sincere, to be seriously honest.
I know you don't believe me, but I really did see that UFO, sinseriously.
Dictionary of american slang with examples. .
I know you don't believe me, but I really did see that UFO, sinseriously.
Dictionary of american slang with examples. .
Sinseriously — To be earnestly sincere, to be seriously honest. I know you don t believe me, but I really did see that UFO, sinseriously … Dictionary of american slang