Hold on like bulldog and Rein in

Rein in and hold on like bulldog are semantically related. In some cases you can use "Rein in" instead a verb phrase "Hold on like bulldog".

Rein in verb - To keep from exceeding a desirable degree or level (as of expression).

Hold on like bulldog and rein in are semantically related. Sometimes you can use "Hold on like bulldog" instead a verb "Rein in".