It looks like Dave is the weak sister on the team.Another weak sister and we'll have to quit. We've got to pull together.
weak sister
noun
1
a weak, ineffective person US, 1857.
2
an investor who buys a stock as an investment but sells it as soon as the price rises US, 1988
weak sister
a timid person, usually a male. It looks like Dave is the weak sister on the team. We've got to pull together and stop playing like a bunch of weak sisters.
weak sister
n. a timid person, usually a male. Another weak sister and we’ll have to quit. We’ve got to pull together.