The difference between Beat up and Do over

When used as verbs, beat up means to give a severe beating to, whereas do over means to cover with.

Beat up is also noun with the meaning: a person who, or thing that, has been beaten up.

Beat up is also adjective with the meaning: battered by time and usage.

check bellow for the other definitions of Beat up and Do over

Beat up as a verb (transitive):

To give a severe beating to; to assault violently with repeated blows.

Examples:

"I got beaten up by thugs on my way home."
Beat up as a verb (obsolete):

To attack suddenly; to alarm.
Beat up as a verb:

To cause, by some other means, injuries comparable to the result of being beaten up.
Beat up as a verb (reflexive):

To feel badly guilty and accuse oneself over something. Usually followed by over or about.

Examples:

"Don't beat yourself up over such a minor mistake."
Beat up as a verb (military, WW2 air pilots' usage):

Repeatedly bomb a military target or targets.
Beat up as a verb:

To get something done, derived from the idea of beating for game
Beat up as a verb (intransitive, nautical):

To sail to windward using a series of alternate tacks across the wind.
Beat up as a verb (intransitive, dated):

To disturb; to pay an untimely visit to.
Beat up as a verb (intransitive, dated):

To go diligently about in order to get helpers or participants in an enterprise.

Examples:

"to beat up for recruits, or for volunteers"

Beat up as an adjective (slang):

Battered by time and usage; beaten up.

Beat up as a noun:

A person who, or thing that, has been beaten up.
Beat up as a noun (UK, military slang):

An act of beating up: A raid. A beating; a hazing.
Beat up as a noun (UK, Australia, New Zealand):

An artificially or disingenuously manufactured alarm or outcry, especially one agitated by or through the media.
Beat up as a noun (forestry):

A tree planted later than others in a plantation.

Do over as a verb (transitive):

To cover with; to smear or spread on to.
Do over as a verb (transitive, Britain, slang):

To beat up.
Do over as a verb (transitive, US):

To repeat; to start over.