尽失态
[jĭn shī tài]
'尽失态' (Jìn shī tài) literally means 'Losing All Composure,' suggesting being utterly flustered, which can be seen negatively due to loss of grace. However, here it might also carry a light-hearted tone indicating a funny or endearing clumsiness or being out of one's usual self when encountering exciting situations.