Meaning of with one's tail up in English:

with one's tail up

phrase

informal
  • In a confident or cheerful mood.

    ‘the West Indies team with their tails up can be awesome’
    • ‘In such a situation, the fielding side has its tail up and there is added pressure on the batting team.’
    • ‘Every ball was potentially lethal and the West Indian team had their tails well and truly up.’
    • ‘The bowlers' tails were up, but another downpour washed out their hopes.’
    • ‘But an hour later and it was the South Africans whose tails were up as they picked up three wickets for just two runs in 19 balls.’
    • ‘The English bowlers looked to have their tails up, as though they'd had a moment of revelation.’
    • ‘England now had their tails up, and back into the attack came Flintoff, whose tight line from around the wicket had accounted for Adam Gilchrist in the first innings.’
    • ‘The home side's tails were really up now and superb inter-linking play saw Standeven score twice on the bounce.’