Red Star have admitted they're "raging" as their English language Twitter admin ducked for cover in the wake of a 3-0 Ibrox thumping.
Belgrade set out to win the banter battle online as they dubbed their account 'FK Crvena zvezda in Glaswegian' ahead of the tie but Rangers fans returned to gloat after their side put one foot into the Europa League quarter-finals.
James Tavernier got the party started from the penalty spot before goals from Alfredo Morelos and Leon Balogun.