The phrase "a lightweight on" is not correct and does not convey a clear meaning in written English.
It may be intended to describe someone who is not very knowledgeable or skilled in a particular area, but the phrasing is awkward and unclear.
Example: "He seems to be a lightweight on the subject of economics, lacking depth in his understanding."
Alternatives: "a novice in" or "lacking expertise in".
Sparring this week, Romney called Rick Santorum an "economic lightweight," and Santorum called Romney "a lightweight on conservative accomplishments," "uniquely unqualified" and "a bully".
On Wednesday, Democrats were ready for the critique that their candidate was a lightweight on national security, and they wasted no time opening a counteroffensive.
Mr Obama wants to turn the page on George Bush's confrontational style which stirred so much anti-American sentiment, but he also needs to deliver on his objectives or face the risk being dismissed as a lightweight on the international stage.
By mocking Mrs Clinton's claims to have landed under sniper fire in Bosnia or pouring scorn on her much-ballyhooed claim to have visited 80 countries as First Lady they successfully deflected the damaging charge that he is a lightweight on international issues.
Bit of a lightweight on tonight's performance so far #bbcqt April 10 , 2014But Prescott has never said a kind word about a Tory in the last 70 years, and so it would be surprising if he were to start now.
Ad hoc distributed OCSP for trust (ADOPT) is a lightweight, distributed, on-demand scheme based on cached OCSP responses, which provides certificate status information to the nodes of a MANET.
Depending on how you use it, the plugin is a lightweight add-on that could save you a load of time navigating the minutiae of sending tons of emails.
Dot is a lightweight snap-on attachment that doesn't require batteries or power.
This paper studies the routing protocol "Lightweight On-demand Ad hoc Distance-vector Routing Protocol – Next Generation (LOADng)", designed to enable efficient, scalable and secure routing in low power and lossy networks.
The Socialist candidate in next year's presidential election tried to dispel a reputation as a lightweight, especially on foreign affairs, by heading to the toughest region on the planet.How did she do?
Instead, the researchers took syn1.0's genome and reshuffled it, producing a lightweight variation on the original.
