My thanks to a mutual friend of me old mukka Matt Padmore (Spurs tattoo the size of a flippin’ hubcap on his back) we have the answer from an actual Spanish Spurs fan!
‘It’s his literal translation of the common sayings in Spanish, we often joke with, “If I do this or this happens, I’ll leave…”
With (Si gano la Champions, me voy) Poch just did a literal translation and indirectly generated press material; when he realised about that, he liked it and started playing he usual game with the press…’
So Poch wasn’t being a child, he was was using a phrase perhaps akin to a ‘mic drop’.
Back the damn manager!