A way of telling someone something tenderly, so as not to shock them or hurt their feelings. Best used when you are absolutely sure of something and you want to "drop a bomb" on someone. Can be used jokingly or sarcastically.
I can't be sure but....I think that was my grenade that killed you bro.

I can't be sure but....I don't think I used a condom last night.

I can't be sure but....I think I'm pregnant.

I can't be sure but....I think I have chlamydia.
by bearfootbuffalo January 20, 2011
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