slip of the pen

slip of the tongue

to slip on

to slip off

to slip out of something

to slip a notch

to slip away

to slip into gear

to slip out

to slip the collar

to slip up

He slipped through their fingers

I slipped.

It slipped my mind

as slippery as an eel

to be as slippery as an eel

to be a slippery customer

He’s slipping

slob

to slob about/around/out

to slobber over someone

to slobber over something

to slog through a book

to slog away at something

to slog one’s guts out