Morocco· medium· informal
avoir le seum
“to have the seum (Arabic word for venom)”
Meaning
to feel bitter and resentful
Explanation
It means feeling strong frustration or resentment after disappointment.
Example
Il a le seum depuis qu'il a raté la sélection.
He has been really bitter since he missed the selection.
Origin
The term is linked to Arabic 'semm' (venom) and spread through Maghrebi-influenced youth slang before becoming common in colloquial French.
Where
Morocco
Algeria
Tunisia
Source