Strongest and fearless but the most friendly nation you'll come by in the pacific. Ancient times when warriors of Tonga traveled by kalia, or canoe, with armies conquering a wide area of Polynesia, from Rotuma in the west to Niue in the east, including much of Samoa.

strongest nation. Pacific islanders;

Take Longer --> combine the two together and you get 'tonga'. Basically instead of sarcastically saying to someone when they are taking ages, "take longer", you just say "tonga" in a sarcastic tone. I.e. HURRY UP