1 definition by FrenchToastMafiaAffiliate

1. To Steif means to do something so detrimental and abnormally dimwitted that you are immediately mocked and ridiculed by friends, peers, or any human being within sight.

2. Also pertaining to embarrassing events in the past tense; "I Steifed when I..."

3. Having sexual intercourse in someones kitchen on a couch with a grenade.

4. Being rejected by multiple grenades within one particular night and/or weekend.

Synonym: Taking L's
"Austin has such a bad life, he steifs every weekend."
"Oh shit, I almost steifed!"
by FrenchToastMafiaAffiliate February 8, 2017
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