glom onto
Advanced (C1)informal
To grab onto someone or something and not let go, like sticky tape.
"The toddler glommed onto the babysitter the moment her mother left the room."
Hear it in context

JIMMY KIMMEL on the State of Late Night, Pranks, and Growing Up Kimmel | IMO
Michelle Obama · 29:42
I mean, it's like you glom onto people and they stay with you forever.

Why Does the US Only Have Two Major Parties?: Crash Course US Government #2
CrashCourse · 5:12
In the US, it's usually easier to just glom onto one of the two major parties.