1 definition by jackqueslack23

An Onosecond is defined as the second after you realise you have done something that is embarrassing or bad.
Examples where an Onosecond can kick in:

Text message contents: A sexy message or a picture of your private parts.
Recipient: a family member.

Seeing a typo in an important essay just after you have sent it.

Accidentally revealing a surprise to someone because you were distracted.
by jackqueslack23 July 29, 2020
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