blood is thicker than (something)

family relationships are stronger and more important than something else.

We were old friends, but I couldn't side with her against my parents — blood was thicker than friendship to me.

Etymology: based on the saying blood is thicker than water (= family relationships are strongest of all)

• catch on the hop
• catch red-handed
• catch sight of
• catch sight of someone
• catch sight of something
• catch someone cold
• catch someone dead to rights
• catch someone in the act
• catch someone off guard
• catch someone on the hop
• catch someone red-handed
• catch someone's eye
• catch someone with fingers in the till
• catch someone with hand in the till
• catch someone with their fingers in the till
• catch someone with their hand in the till
• catch some rays
• catch some z's
• catch the wave
• catch up on
• catch up on something
• catch with fingers in the till
• catch with hand in the till
• catch with their fingers in the till
• catch with their hand in the till