salty
annoyed, sour, bitter - especially after losing (common in gaming)
Origin
'Salty' is a figurative use of English 'salty' and describes someone who is annoyed, offended or embittered. This sense has been attested in English since roughly the 1930s; the image traces back to bitter, 'salty' tears. Especially in the gaming and streaming scene (e.g. on Twitch) it refers to frustration after a loss - often accompanied by the salt-shaker emoji.
Building blocks
Words in this expression
Examples
Sei nicht so salty, nur weil du hast.
Don't be so salty just because you lost.