Dictionary

(rarely countable) Unsolicited bulk electronic messages.

Example: I get far too much spam.

Any undesired electronic content automatically generated for commercial purposes.

A type of tinned meat made mainly from ham.

To send spam (i.e. unsolicited electronic messages.)

To send spam (i.e. unsolicited electronic messages) to a person or entity.

(by extension) To use (a spell or ability) rapidly and repeatedly.

Example: Stop spamming that special attack!

To post the same text repeatedly with disruptive effect; to flood.