(right) on cue

as if planned to happen exactly at that moment.

We were traveling up a narrow river in East Africa when, right on cue, a hippopotamus thrust its head out of the water.

• could in their sleep
• couldn't [act/argue/fight] way out of a paper bag
• couldn't [act/argue/fight] your way out of a paper bag
• couldn't act way out of a paper bag
• couldn't act your way out of a paper bag
• couldn't argue way out of a paper bag
• couldn't argue your way out of a paper bag
• couldn't believe eyes
• couldn't believe your eyes
• couldn't care less
• couldn't fight way out of a paper bag
• couldn't fight your way out of a paper bag
• couldn't have asked for anything more
• couldn't have asked for more
• couldn't lie straight in bed
• couldn't organize a piss-up in a brewery
• couldn't ... way out of a paper bag
• couldn't ... your way out of a paper bag
• could standing on head
• could standing on your head
• could talk under water
• could with eyes closed
• could with eyes shut
• could with their eyes closed
• could with their eyes shut